Definition of Acephala
A`ceph´a`la
n. pl.
1.
(Zool.)
That
division
of
the
Mollusca
which
includes
the
bivalve
shells
,
like
the
clams
and
oysters
; -
so
called
because
they
have
no
evident
head
.
Formerly
the
group
included
the
Tunicata
,
Brachiopoda
,
and
sometimes
the
Bryozoa
.
See
Mollusca
.
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Accuse
Accused
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Accuser
accusing
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Accustom
Accustomable
Accustomably
Accustomance
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Ace
acedia
Aceldama
acellular
Acentric
Acephal
Acephalan
Acephali
Acephalist
Acephalocyst
Acephalocystic
Acephalous
Acequia
Acer
Aceraceae
Acerate
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Acerous
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