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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adj
Beneath or forward of the umbos of a bivalve shell.
Definition source: English Wiktionary via Wiktextract
Usage: not-comparable
Topics: biology, natural-sciences, zoology
Synonyms: none provided
Antonyms: none provided
History
From sub- + umbonal.
