Word:

Aptychus

Ap´ty`chus
n.1.(Zool.) A shelly plate found in the terminal chambers of ammonite shells. Some authors consider them to be jaws; others, opercula.
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Aptera
Apteral
Apteran
Apteria
Apterous
Apteryges
Apterygidae
Apterygiformes
Apteryx
Aptitude
Aptitudinal
Aptly
APTM
Aptness
Aptote
Aptotic
-- Aptychus --
APU
Apulia
Apus
Apus apus
APW
APX III
Apyretic
apyretic tetanus
Apyrexia
Apyrexial
Apyrous
aq
Aqaba
AQL
Aqua
aqua ammonia
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