(physics) the transfer of energy between elementary particles or between an elementary particle and a field or between fields; mediated by gauge bosons
(of e.g. volcanos) permanently inactive; "an extinct volcano"
being out or having grown cold; "threw his extinct cigarette into the stream"; "the fire is out"
no longer in existence; lost or especially having died out leaving no living representatives; "an extinct species of fish"; "an extinct royal family"; "extinct laws and customs"
the act of traveling by foot; "walking is a healthy form of exercise"
the act of walking somewhere; "he took a walk after lunch"
a slow gait of a horse in which two feet are always on the ground
a path set aside for walking; "after the blizzard he shoveled the front walk"
manner of walking; "he had a funny walk"
obtain a base on balls
give a base on balls to
take a walk; go for a walk; walk for pleasure; "The lovers held hands while walking"; "We like to walk every Sunday"
use one's feet to advance; advance by steps; "Walk, don't run!"; "We walked instead of driving"; "She walks with a slight limp"; "The patient cannot walk yet"; "Walk over to the cabinet"
make walk; "He walks the horse up the mountain"; "Walk the dog twice a day"
accompany or escort; "I'll walk you to your car"
traverse or cover by walking; "Walk the tightrope"; "Paul walked the streets of Damascus"; "She walks 3 miles every day"
walk at a pace; "The horses walked across the meadow"
be or act in association with; "We must walk with our dispossessed brothers and sisters"; "Walk with God"
live or behave in a specified manner; "walk in sadness"
emptied or exhausted of (as by drawing off e.g. water or other liquid); "a drained marsh"; "a drained tank"; "a drained and apathetic old man...not caring any longer about anything"
(biology) the field of science concerned with processes of communication and control (especially the comparison of these processes in biological and artificial systems)
the immature free-living form of most invertebrates and amphibians and fish which at hatching from the egg is fundamentally unlike its parent and must metamorphose
performance given by a traveling company of acrobats clowns and trained animals; "the children always love to go to the circus"
a frenetic disorganized (and often comic) disturbance suggestive of a large public entertainment; "it was so funny it was a circus"; "the whole occasion had a carnival atmosphere"
a genus of haws comprising the harriers
an arena consisting of an oval or circular area enclosed by tiers of seats and usually covered by a tent; "they used the elephants to help put up the circus"
(antiquity) an open-air stadium for chariot races and gladiatorial games
a travelling company of entertainers; including trained animals; "he ran away from home to join the circus"