Definition of Equilateral shell
(Zool.)
one
in
which
a
transverse
line
drawn
through
the
apex
of
the
umbo
bisects
the
valve
,
or
divides
it
into
two
equal
and
symmetrical
parts
.
See also:
Equilateral
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Equerry
Equery
Equestrian
Equestrianism
Equestrienne
Equi-
Equiangled
Equiangular
Equiangular spiral
Equibalance
Equicrescent
Equicrural
Equicrure
Equidifferent
Equidistance
Equidistant
Equidiurnal
Equiform
Equilateral
Equilateral hyperbola
Equilibrate
Equilibration
Equilibrious
Equilibrist
Equilibrity
Equilibrium
Equilibrium valve
Equimomental
Equimomental cone of a given rigid body
Equimultiple
Equinal
Equine
Equinia
Equinoctial
Equinoctial colure
Equinoctial line
Equinoctially
Equinox
Equinumerant
Equip
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