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Webster 1913 Edition
Anaptychus
‖
An-ap′ty-chus
,Noun.
pl.
Anaptichi
. [NL., fr. Gr. [GREEK] unfolding;
ἀνά
back + [GREEK] to fold.] (Paleon.)
One of a pair of shelly plates found in some cephalopods, as the ammonites.
Definition 2024
anaptychus
anaptychus
English
Noun
anaptychus (plural anaptychi)
- (paleontology) One of a pair of shelly plates found in some cephalopods, such as the ammonites.