HCN
HCN is the initialism of hydrogen cyanide.
HCN is the initialism of highly composite number.
Meaning of hydrogen cyanide
Noun
hydrogen cyanide (uncountable)
- A colourless, very poisonous, volatile liquid, HCN, used in the production of dyes, plastics and fumigants; it dissolves in water to form hydrocyanic acid and reacts with bases to form cyanides, and with some organic compounds to form nitriles.
- Synonyms:
- chyazic acid, formonitrile, Nevada gas
Meaning of highly composite number
Noun
highly composite number (plural highly composite numbers)
- A positive integer that has more divisors than any smaller positive integer.
- In the unpublished section of his notebook, Ramanujan extends the notion of highly composite number to other arithmetic functions, mainly to Q#95;#123;2k#125;(N),#92;1#92;lek#92;le 4, where Q#95;#123;2k#125;(N) denotes the number of representations of N as the sum of 2k squares, and to...2012, George E. Andrews, Bruce C. Berndt, Ramanujan's Lost Notebook, Part III, Springer, page 359
- Used other than figuratively or idiomatically: see highly, composite number; A positive integer that has a relatively large number of divisors.
- This factorization becomes particularly simple and economical when N is a highly composite number, in particular a power of 2.1995, Bengt Fornberg, A Practical Guide to Pseudospectral Methods, Paperback edition, Cambridge University Press, published 1998, page 176
Forms of HCN
| plural | HCNs |
|---|
Questions about HCN
- What is HCN the initialism of?
- HCN is the initialism of hydrogen cyanide.
Words near HCN in the dictionary
Source and license
Adapted from Wiktionary: HCN (page history and authors); hydrogen cyanide (page history and authors); highly composite number (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
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Cite this entry: “HCN.” Word.ws, https://word.ws/hcn. Based on Wiktionary, CC BY-SA 4.0.