Standard Lemma guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
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noun
Any organic compound having a general formula (CH2)n
Definition source: English Wiktionary via Wiktextract
Usage: obsolete
Topics: chemistry, natural-sciences, physical-sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
Any of many organic compounds either having a polymeric structure of repeating -CH2- groups
Definition source: English Wiktionary via Wiktextract
Usage: in-compounds
Topics: chemistry, natural-sciences, physical-sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
History
Etymology tree Proto-Indo-European *pleh1- Proto-Indo-European *polh1ús Ancient Greek πολῠ́ς (polŭ́s)lbor. English poly- French méthylène English methylene English polymethylene From poly- + methylene.
