Copyright © Philip M. Parker, INSEAD. Terms of Use.
Definitions: Perseus |
PerseusNoun1. (Greek mythology) son of Zeus and Dana who slew the Gorgon Medusa (with the help of Athena and Hermes) and rescued Andromeda from a sea monster. 2. A conspicuous constellation in the northern hemisphere; between Auriga and Cassiopeia and crossed by the Milky Way. Source: WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved. |
"Perseus" is a name that signifies or is derived from: "destroy". |
Date "Perseus" was first used in popular English literature: sometime before 1588. (references) |
Etymology: Perseus \Per"se*us\, noun. [Latin expression, from the Greek]. (Websters 1913) |
| Domain | Definitions |
Aerospace | See constellation.Abbreviation Per, Pers. (references) |
Literature | Perseus (2 syl.). A bronze statue in the Loggia dei Lanzi, at Florence. The best work of Renvennto Cellini (1500-1562). Perseus' flying horse. A ship. "Perseus conquered the head of Medusa, and did make Pegase, the most swift ship, which he always calls Perseus' flying horse."- Destruction of Troy. "The strong-ribbed bark through liquid mountains cut ... Like Perseus' horse." Shakespeare: Troilus and Cressida, i. 3. Source: Brewer's Dictionary. |
Source: compiled by the editor from various references; see credits. | |
(From Wikipedia, the free Encyclopedia)
In late 1925 and early 1926, the RAE published a series of papers on the sleeve valve principle. In short, the sleeve valve replaced the normal poppet valves in the engine with a rotating sleeve inside the cylinder. The sleeve rotated, and holes in the sleeve and cylinder lined up to open and close the valve. The advantages were primarily simplicity and that less energy is needed to run the system. However at higher powers and RPMs, when the engine needs to move considerably more air and so so more quickly, the sleeve design comes into its own. The sleeve is also much easier to "drive" than the poppet, there are no pushrods or rockers needed just a gear at the base of the cylinder, so it is a much better design to use in "dense" two-row engines where the pushrods otherwise take up considerable space. It was this "future expansion" capability that interested Roy Fedden when he first read of the work.
By 1927 Fedden had built a working two cylinder V as a testbed, with the idea of developing it into a V-12. However several problems cropped up on the design, notably that the sleeves tended to burst during the power stroke and strip their driving gears. This led to a long series of tests and materials changes and upgrades that required six years and an estimated 2 million pounds, but by 1933 the problems had been worked out.
The result was a Jupiter-sized engine adapted to the sleeve system, the Perseus, and it's smaller cousin, the Bristol Aquila. The first production versions of the Perseus were rated at 580 horsepower, the same as the same-year model Mercury, which shows that the sleeve system was being underutilized. However this was quickly uprated as improvements were introduced, and by 1936 the Perseus was delivering 810hp, eventually topping out at 930hp in 1939.
The Perseus saw limited use in the civilian field, notably on the Short Empire flying-boats, but was more common in the now-expanding military field where it was found on the Westland Lysander, Vickers Vildebeest, Blackburn Botha, Skua and Roc bombers.
The main contribution of the Perseus is that its mechanicals were used as the basic piston and cylinder for the "twinned" versions, the tremendously successful Hercules and Centaurus. It was in these designs that the advantages of the sleeve valve were finally put to good use, and by war's end the Centarus was one of the most powerful engines in the world.
Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "Bristol Perseus."
Crosswords: Perseus |
| English words defined with "Perseus": Algol ♦ Medusa, medusa's head ♦ Perseid ♦ the Triangle, Triangulum. (references) |
| Specialty definitions using "Perseus": Danae ♦ Macedonicus ♦ Pacolet, Per, Pers. (references) |
| Etymologies containing "Perseus": Andromeda. (references) |
| Non-English Usage: "Perseus" is also a word in the following language with the English translation in parentheses. Dutch (Perseus). |
| Domain | Usage | |
Screenplays | Odysseus Perseus Theseus a lot of sus-es. (Hercules; writing credit: Ron Clements; Barry Johnson) | |
Source: compiled by the editor from various references; see credits. | ||
| Domain | Title |
Books | |
Theater & Movies | |
Source: compiled by the editor from various references; see credits. | |
| Thumbnail | Description & Credit | Thumbnail | Description & Credit |
 | Perseus B Parked on Ramp.Credit: NASA. |  | The Democratic Andromeda and her Perseus.Credit: Library of Congress. |
 | Star map with constellations of Andromeda, Perseus, and Triangulum.Credit: Library of Congress. |  | Man, possibly Perseus, and wounded woman pursued by Gorgons.Credit: Library of Congress. |
Source: compiled by the editor from various references; see credits. | |||
| "Perseus" is generally used as a noun (proper) -- approximately 95.83% of the time. "Perseus" is used about 24 times out of a sample of 100 million words spoken or written in English. Its rank is based on over 700,000 words used in the English language. Some parts-of-speech are not covered due to the samples used by the British National Corpus. (note: percents less than one-hundredth of one percent have been omitted) |
| Parts of Speech | Percent | Usage per 100 Million Words | Rank in English |
| Noun (proper) | 95.83% | 23 | 72,767 |
| Noun (common) | 4.17% | 1 | 339,140 |
| Total | 100.00% | 24 | N/A |
Source: compiled by the editor from several corpora; see credits.
| Hyphenated Usage | |
Beginning with "Perseus": perseus-like. | |
| Source: compiled by the editor from various references; see credits. | |
| The following statistics estimate the number of searches per day across the major English-language search engines as identified by various trade publications. Hyperlinks lead to commercial use of the expression at Amazon.com. |
| Expression | Frequency per Day | Expression | Frequency per Day |
perseus | 387 | brightest in perseus star | 5 |
mother perseus | 139 | house perseus | 4 |
bright in perseus star | 80 | perseus tuft | 4 |
perseus star | 60 | consultant perseus | 4 |
constellation perseus | 52 | constellation perseus star | 4 |
perseus project | 46 | digital library perseus | 4 |
bright perseus star | 35 | birth perseus | 4 |
in perseus star | 33 | mythology perseus | 4 |
perseus publishing | 25 | brightest perseus star | 4 |
perseus and medusa | 19 | biopharmaceutical fund perseus soros | 4 |
perseus book | 15 | head medusa perseus | 3 |
perseus and andromeda | 11 | myth perseus | 3 |
perseus book group | 7 | astronomy perseus | 3 |
greek mythology perseus | 7 | perseus story | 3 |
perseus soros | 7 | perseus solution survey | 3 |
llc perseus | 6 | capital perseus | 2 |
pegaus perseus | 6 | greek hero perseus | 2 |
perseus toisa | 5 | perseus development | 2 |
perseus picture | 5 | perseus publisher | 2 |
| Source: compiled by the editor from various references; see credits. | |||
| Language | Translations for "Perseus"; alternative meanings/domain in parentheses. | ||||||||||||||||||||||
Albanian | Perseu. (various references) | ||||||||||||||||||||||
Dutch | Perseus. (various references) | ||||||||||||||||||||||
Esperanto | Perseo. (various references) | ||||||||||||||||||||||
Greek | Περσέωσ, Περσέασ, Περσεύσ. (various references) | ||||||||||||||||||||||
Japanese Kanji | ペルセウス座 (licking, P.E.N., paint, pellet, pen, perestroika). (various references) | ||||||||||||||||||||||
Japanese Katakana | ペルセウスざ. (various references) | ||||||||||||||||||||||
Manx | Yn Whing. (various references) | ||||||||||||||||||||||
Pig Latin | erseuspay Opressor (chaser, depressor, despot, oppressor). (various references) Персей. (various references) persej. (various references) | ||||||||||||||||||||||
| Words rhyming with "Perseus" (pronounced 'Per"se*us'): Abaciscus, Abaculus, Abacus, Abdominous, Abgeordnetenhaus, Abiogenous, Ablatitious, Abnormous, Absentaneous, Absonous, Abstemious, Abstentious, Abstractitious, Acanthaceous, Acanthocarpous, Acanthocephalous, Acanthophorous, Acanthopodious, Acanthopterous, Acanthopterygious, Acanthus, Acarpellous, Acarpous, Acarus, Accismus, Acclivitous, Acclivous, Acephalous, Acetabuliferous, Acetarious, Acetous, Achilous, Achlamydeous, Acholous, Achromatous, Achroous, Achylous, Achymous, Acidiferous, Acidulous, Acinaceous, Acinus, Acotyledonous, Acrimonious, Acrocarpous, Acrogenous, Acronyctous, Acrosporous, Acrotomous, Actinophorous. (additional references) |
Scrabble® Enable2K-Verified Anagrams | |
Direct Anagrams: peruses. | |
| Words within the letters "e-e-p-r-s-s-u" | |
-1 letter: perses, peruse, purees, purses, reuses, rupees, speers, sprees, sprues, supers. | |
-2 letters: erses, peers, perse, prees, prese, press, puree, purse, puses, reuse, rupee, ruses, seeps, seers, seres, speer, spree, sprue, spues, spurs, suers, super, supes, users. | |
-3 letters: eses, peer, pees, pree, pure, purs, puss, rees, reps, rues, ruse, seep, seer, sees, sere, sers, spue. | |
| Words containing the letters "e-e-p-r-s-s-u" | |
+1 letter: espouser, perfuses, perusers, pressure, presumes, pureness, repousse, repulses, superset, supersex. | |
+2 letters: espousers, exposures, peloruses, percussed, percusses, persuades, pleasures, pressured, pressures, presumers, proteuses, repousses, repulsers, repursues, spherules, superbest, superegos, superjets, superlies, superpose, supersafe, supersale, supersede, supersell, supersets, supersize, supervise, supremest, suspender, suspenser, unpressed, unspheres, upsetters. | |
+3 letters: crepuscles, disreputes, euphrasies, impressure, impureness, outpressed, outpresses, overpluses, pasteurise, percussive, perfusates, persecutes, persuaders, persuasive, pleurisies, preciouses, prefocuses, pressurise, pressurize, presuppose, prosecutes, pulverises, purenesses, resupplies, sepulchers, sepulchres, sepultures, spelunkers, spruceness, sputterers, superbness, supercedes, superettes, superfixes, supergenes, superglues, superheats, superhypes, supermales, superposed, superposes, superraces, supersales, superscale, superseded, superseder, supersedes, supersells, supersexes, supersized, superspies, superstate, superstore, supersweet, supertaxes, supervenes, supervised, supervises, superwaves, superwives, suppressed, suppresses, suspenders, suspensers, unripeness, uppercases. | |
| Source: compiled by the editor from various references; see credits. SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. | |
Hexadecimal (or equivalents, 770AD-1900s) (references)50 65 72 73 65 75 73 |
| Leonardo da Vinci (1452-1519; backwards) (references)
|
| American Sign Language (origins from 1620-1817 in Italy and, especially, France) (references)
|
| Semaphore (1791, in France) (references)
|
| Braille (1829, in France) (references)
|
Morse Code (1836) (references).--. . .-. ... . ..- ... |
| Dancing Men (Sir Arthur Conan Doyle, 1903) (references)
|
| Amazon.com BOOKS: Search for: "Perseus" |
