monovalent
univalent
one-half
sesqui-
inverted hat
Prouhet-Tarry-Escott problem
caret
A-sharp
one-sixth
full circle
numerator
wane
schizolysis
moiety
mediety
quotient
Carol number
down the middle
scrimmage
trigonometric series
fourth
bisegmental
binary notation
inclusive or
one-third
dunder
dimidiate
one-eighth
diphy-
eighth
two-thirds
epogdoon
cipher
one-quintillionth
hemidimer
quintillionth
oto-
mixed number
first
twelfth
twelfth part
shoulder
one-seventh
duodecimal
one-twelfth
bifarious
divisor
bisectioning
inverse
bialgebroid