protoconch

English

Etymology

proto- +‎ conch

Noun

protoconch (plural protoconches or protoconchs)

(zoology) The embryonic shell, or initial chamber, of ammonites and other cephalopods

Coordinate terms

teleoconch

References

“protoconch”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.

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