Copyright © Philip M. Parker, INSEAD. Terms of Use.

| The following table is compiled from various sources, across various languages. When English abbreviations or acronyms come from a non-English source, this is noted. | |||
| Entry | Source | Expression | Field |
CL50 | French | Concentration léthale 50% | Environment, Medicine |
Source: compiled by the editor, based on several corpora (additional references). | |||
| 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 |
cl50 siemens | 26 |
| Source: compiled by the editor from various references; see credits. | |
Hexadecimal (or equivalents, 770AD-1900s) (references)43 4C 35 30 |
| Leonardo da Vinci (1452-1519; backwards) (references)
|
Binary Code (1918-1938, probably earlier) (references)01000011 01001100 00110101 00110000 |
HTML Code (1990) (references)C L 5 0 |
ISO 10646 (1991-1993) (references)0043 004C 0035 0030 |
Encryption (beginner's substitution cypher): (references)37462318 |
| 1. Expressions: Internet 2. Abbreviations 3. Acronyms 4. Orthography | 5. Bibliography |
Copyright © Philip M. Parker, INSEAD. Terms of Use.