dyadic operation
monadic operation
unary operation
binary operation
decrementation
incrementation
binary
bialgebroid
bimodular
additive operation
geminous
simultaneous operation
idempotent
parallel operation
pair
comonoid
geminate
bidual
boolean operation
threshold operation
binary arithmetic operation
half and half
bifold
bigeminal
associative
half
one-half
isoselective
prime
common factor
applicative
common measure
down the middle
multiskyrmion
common divisor
duodecillionth
magma
majority operation
multiacetylation
pairwork
two-thirds
coadjoint
bisected
homographic
twosome
homobifunctional
sequential operation
mate
dualizable
homodisubstituted