Trituberculy
Definition of Trituberculy
Tri`tu`ber´cu`ly
n.
1.
(Zool.)
A
theory
of
the
development
of
mammalian
molar
teeth
.
The
primitive
stage
is
that
of
simple
cones
,
as
in
reptiles
.
The
simple
cone
then
developed
a
smaller
cone
in
front
and
another
behind
.
Next
,
a
cingulum
was
developed
,
and
the
three
cones
became
arranged
in
a
triangle
,
the
two
smaller
cusps
having
moved
to
the
outer
side
in
upper
and
to
the
inner
in
lower
molars
.
This
primitive
triangle
is
called
the
trigon
or
trigonid
and
this
stage
the
tritubercular
or
trigonodont
.
The
trigon
being
a
cutting
apparatus
,
an
extension
of
the
posterior
part
of
the
crown
was
developed
in
lower
molars
for
crushing
,
and
a
smaller
corresponding
part
appeared
in
upper
molars
.
Another
large
cone
then
arose
,
usually
from
the
cingulum
.
In
more
complex
forms
,
smaller
intermediate
cusps
appeared
.
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Trite
Triternate
Tritheism
Tritheist
Tritheistic
Tritheite
Trithing
Trithionate
Trithionic
Tritiated
Tritical
Triticin
Triticum
tritium
Triton
Tritone
Tritorium
Tritovum
Tritozooid
Tritubercular
-Trituberculy-
Triturable
Triturate
Trituration
Triture
Triturium
Trityl
Tritylene
Triumph
Triumphal
Triumphal arch
Triumphant
Triumphantly
Triumpher
Triumphing
Triumvir
Triumvirate
Triumviry
Triune
Triungulus
Triunity
A
B
C
D
E
F
G
H
I
J
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L
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O
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W
X
Y
Z
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