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A calcareous opening in the body of echinoderms which connects the water vascular system to the environment.
Definition source: English Wiktionary via Wiktextract
Topics: biology, natural-sciences, zoology
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
A fossil stony coral, or a deposit composed of the same.
Definition source: English Wiktionary via Wiktextract
Usage: archaic
Topics: biology, history, human-sciences, natural-sciences, paleontology, sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
From madrepore + -ite; the echinoderm sense is in reference to how it resembles the coral.