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
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No pronunciation record was provided for this word.
noun
The outer layer of a pollen grain or spore; the exine.
Definition source: English Wiktionary via Wiktextract
Topics: biology, botany, natural-sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
History
Etymology tree Ancient Greek ἐκ (ek) Ancient Greek ἔξω (éxō)der. English exo- English spore Proto-Indo-European *-om Proto-Italic *-om Latin -umder. English -ium English exosporium From exo- + spore + -ium.
