bump heads
confront
contend
contrapose
contraposit
contrast
counteract
face
front
lie opposite
match
meet head-on
oppose
pose against
put in opposition
set over against
stand opposed
stand opposite
subtend
alter
change
disunite
divide
modify
part
separate
polarized
polarizes
polarizing
atmospherical
atomic/magnetic
bluish-black
brown-grey
clawlike
computer-controlled
containingan
cow-bell
dove-colored
golden-bronze
inelastic
low-energy
nacreous
non-bonding
overwhelming
photoconductive
photoemission
silvery-green
spin-down
uncharged
unpolarized