submentum

1. The basal part of the labium of insects, which bears the mentum.

2. The basal part of the labium of insects. it bears the mentum.

3. In entomology, the proximal one of two basal median parts or pieces of the labium, the other being the mentum; the proximal one of the two basal parts of the second maxilla. see cuts under mouth-part, palpus, hymenoptera, and insecta.

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Here are some other words you could make with the letters submentum

Top Words by points	Points	Word Game
bummest	13	Scrabble

2 Letters	Scrabble® Points
be	4
em	4
en	2
es	2
et	2
me	4
mm	6
mu	4
ne	2
nu	2
te	2
um	4
un	2
us	2
ut	2

3 Letters	Scrabble® Points
ben	5
bes	5
bet	5
bum	7
bun	5
bus	5
but	5
ems	5
emu	5
ens	3
est	3
mem	7
men	5
met	5
mum	7
mun	5
mus	5
mut	5
neb	5
net	3
nub	5
nus	3
nut	3
sen	3
set	3
sub	5
sue	3
sum	5
sun	3
ten	3
tes	3
tub	5
tum	5
tun	3
umm	7
ums	5
uns	3
use	3
ute	3
uts	3

4 Letters	Scrabble® Points
bens	6
bent	6
best	6
bets	6
bums	8
buns	6
bunt	6
bust	6
bute	6
buts	6
emus	6
mems	8
menu	6
mums	8
mumu	8
muns	6
muse	6
must	6
mute	6
muts	6
nebs	6
nest	4
nets	4
neum	6
nubs	6
numb	8
nuts	4
sent	4
smut	6
snub	6
stem	6
stub	6
stum	6
stun	4
suet	4
tens	4
tube	6
tubs	6
tums	6
tune	4
tuns	4
unbe	6
utes	4

5 Letters	Scrabble® Points
bents	7
bunts	7
butes	7
menus	7
mumus	9
mutes	7
neums	7
numbs	9
sebum	9
tubes	7
tunes	5
unmet	7
unset	5
unsub	7

6 Letters	Scrabble® Points
besmut	10
busmen	10
mentum	10
museum	10
subnet	8
unmute	8

7 Letters	Scrabble® Points
bummest	13
numbest	11
submenu	11
unmutes	9