ultracentrifuge
— Verb
– English
～ subject to the action of an ultracentrifuge
ululate
— Verb
– English
～ emit long loud cries; "wail in self-pity"; "howl with sorrow"
umpire
— Verb
– English
～ be a referee or umpire in a sports competition
unarm
— Verb
– English
～ take away the weapons from; render harmless
unbalance
— Verb
– English
～ derange mentally, throw out of mental balance; make insane; "The death of his parents unbalanced him"
unbalance
— Verb
– English
～ throw out of balance or equilibrium; "The tax relief unbalanced the budget"; "The prima donna unbalances the smooth work in our department"
unbar
— Verb
– English
～ remove a bar from (a door)
unbelt
— Verb
– English
～ undo the belt of; "unbelt your trousers"
unbend
— Verb
– English
～ straighten up or out; make straight
unbend
— Verb
– English
～ unfasten, as a sail, from a spar or a stay
unbend
— Verb
– English
～ free from flexure; "unbend a bow"
unbend
— Verb
– English
～ release from mental strain, tension, or formality; "unbend the mind from absorbing too much information"
unbend
— Verb
– English
～ make less taut; "relax the tension on the rope"
unbend
— Verb
– English
～ become less tense, rest, or take one's ease; "He relaxed in the hot tub"; "Let's all relax after a hard day's work"
unbind
— Verb
– English
～ untie or unfasten; "unbind the feet of this poor woman"
unblock
— Verb
– English
～ make (assets) available; "release the holdings in the dictator's bank account"
unblock
— Verb
– English
～ clear or remove an obstruction from; "the procedure unblocked his arteries"