Protoconch

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The embryonic shell, or initial chamber, of ammonites and other cephalopods

Synonyms

All synonyms
teleoconch

Etymology

From proto- + conch.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.