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.
Sound
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
noun
A crossing or intersection of lines etc. so as to form an X-shape.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
an intersection or crossing of two tracts in the form of the letter X
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Synonyms: chiasma, chiasm
Antonyms: none provided
Broader terms: structure, anatomical structure, complex body part, bodily structure, body structure
Narrower terms: optic chiasma, optic chiasm, chiasma opticum
History
From Latin decussationem, from decussare.
