CYSTEINE

cysteine

(noun) an amino acid containing sulfur that is found in most proteins; oxidizes on exposure to air to form cystine

Source: WordNet® 3.1


Etymology

An alteration of cystine.

Noun

cysteine (countable and uncountable, plural cysteines)

(amino acid) A sulphur-containing nonessential amino acid C3H7NO2S found in most animal proteins; it readily oxidizes to cystine.

Usage notes

When used as the name of a substance, this noun is uncountable, but when used as the name of individual molecules, it is countable.

Synonyms

• E910 when used as a food additive

• E920 when used as an improving agent

• Cys when viewed as a monomer in proteins

Source: Wiktionary



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Word of the Day

14 March 2025

PARASITISM

(noun) the relation between two different kinds of organisms in which one receives benefits from the other by causing damage to it (usually not fatal damage)


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Coffee Trivia

According to Guinness World Records, the largest collection of coffee pots belongs to Robert Dahl (Germany) and consists of 27,390 coffee pots as of 2 November 2012, in Rövershagen, Germany.

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