Gastraea
Definition of Gastraea
Gas`trae´a
n.
1.
(Biol.)
A
primeval
larval
form
;
a
double-walled
sac
from
which
,
according
to
the
hypothesis
of
Haeckel
,
man
and
all
other
animals
,
that
in
the
first
stages
of
their
individual
evolution
pass
through
a
two-layered
structural
stage
,
or
gastrula
form
,
must
have
descended
.
This
idea
constitutes
the
Gastræa theory
of
Haeckel
.
See
Gastrula
.
Word:
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Gasometric
Gasometry
Gasoscope
Gasp
Gaspereau
Gasserian
Gasserian ganglion
Gassing
Gassy
Gast
Gaster
Gasteromycetes
Gasterophilus
Gasteropod
Gasteropoda
Gasteropodous
Gastful
Gastight
Gastness
Gastornis
-Gastraea-
Gastralgia
Gastric
Gastric digestion
Gastric fever
Gastric juice
Gastric remittent fever
Gastriloquist
Gastriloquous
Gastriloquy
Gastritis
Gastro-
Gastrocnemius
Gastrocolic
Gastrodisc
Gastroduodenal
Gastroduodenitis
Gastroelytrotomy
Gastroenteric
Gastroenteritis
Gastroepiploic
A
B
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E
F
G
H
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