bolter UK /ˈbɒltə/US /ˈboʊltɚ/noun 12verb 6forms 3 noun12 •A person or thing that bolts, or runs suddenly. •(Australia) An obscure athlete who wins an upset victory.Last year he was eliminated by the bolter Jo-Wilfried Tsonga and this time he was beaten by the shining star, Fernando Verdasco. — 2009 •(Australia) A horse that wins at long odds. •(New-Zealand) In team sports, a relatively little-known or inexperienced player who inspires the team to greater success. •(US) A member of a political party who does not support the party's nominee.The bolters from the Republican convention say, in their manifesto: "Discontent and distress prevail to an extent never before known in the history of the country." — 2007 •A machine or mechanism that automatically sifts milled flour. •A person who sifts flour or meal. •A filter mechanism.This first bolter contains a screen of eight meshes to the inch and separates the hard particles, dirt or scale. — 1920 •A plant that grows larger and more rapidly than usual.Evidence is accumulating that bolters are plants which have changed their long-day habit to that of short-day. — 1949 •A missed landing on an aircraft carrier; an aircraft that has made a missed landing. •Someone who equips a sport route by putting bolts in the rock. •A kind of fishing line; a boulter. verb6 •To miss a landing on an aircraft carrier by failing to catch the arresting gear wires with the aircraft's tailhook.Commander Kleemann came back and boltered again on his second attempt. lt is unheard of for him to bolter twice in a row. Then on his third attempt he got aboard with an OK three-wire trap. — 1982 •To sift or filter through a sieve or bolter. •To fish using a bolter.Those who are not boltering or spillering in the spring are crabbing. — 1915 •(dialect) To smear or become smeared with a grimy substance.Methinks I see them with their boltered hair, Staring and grinning in thy gentle face, And in their ruthless hands their daggers drawn, — 1592 •To pound rapidly.The author refers the case of a teenager, eighteen years old, suffering from stuttering and boltering along with symptoms of anxiety, shakings and sweats. — 1978 •To swim or turn sideways while eating. formsboltered · boltering · bolters