barrier

i. As it relates to the sound barrier, it is a barrier to flight encountered by an airplane designed for subsonic speeds when it reaches transonic speeds and meets the turbulence incident of diverse degrees of compressibility. Intense buffet and loss of controls to a varying degree may be experienced at this speed.
ii. A net forming part of an arrester, or crash barrier system meant to arrest forward motion of an aircraft that is likely to overshoot the runway. Normally, the net lies horizontally on the ground and is raised when required. The vertical ropes of the barrier net are made of nylon, which are attached to the steel ropes at the top and the bottom of the barrier net.

Aviation dictionary. 2014.

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  • barrier — UK US /ˈbæriər/ noun [C] ► something that prevents something else from happening or makes it more difficult: barrier (to sth) »In an ideal world, there would be no barriers to the free movement of people between countries. → See also NON TARIFF… …   Financial and business terms

  • Barrier — Bar ri*er, n. [OE. barrere, barere, F. barri[ e]re, fr. barre bar. See {Bar}, n.] 1. (Fort.) A carpentry obstruction, stockade, or other obstacle made in a passage in order to stop an enemy. [1913 Webster] 2. A fortress or fortified town, on the… …   The Collaborative International Dictionary of English

  • barrier — (n.) early 14c., barere, from Anglo Fr. barrere, O.Fr. barriere obstacle, gatekeeper, from barre bar (see BAR (Cf. bar) (n.1)). First record of barrier reef is from 1805 …   Etymology dictionary

  • barrier — [n1] obstruction bar, barricade, blank wall, blockade, bound, boundary, confines, curtain, ditch, enclosure, fence, fortification, gully, hurdle, impediment, limit, moat, obstacle, pale, palisade, railing, rampart, roadblock, stop, trench, wall;… …   New thesaurus

  • barrier — ► NOUN 1) an obstacle that prevents movement or access. 2) an obstacle to communication or progress: a language barrier. ORIGIN Old French barriere …   English terms dictionary

  • barrier — I noun bar, barricade, bound, boundary, bulwark, check, confines, enclosure, encumbrance, fence, fortification, hindrance, hurdle, impediment, interference, limit, obstacle, obstruction, partition, prevention, preventive, prohibition, protective… …   Law dictionary

  • barrier — n barricade, *bar …   New Dictionary of Synonyms

  • barrier — [bar′ē ər, ber′ē ər] n. [ME barrere < OFr barriere < barre,BAR1] 1. Obs. a fortress, stockade, etc. for defending an entrance or gate 2. a thing that prevents passage or approach; obstruction, as a fence, wall, etc. 3. anything that holds… …   English World dictionary

  • barrier — n. 1) to erect, place, set up a barrier 2) to overcome, take a barrier (the horse took the barrier easily) 3) to break down; remove a barrier 4) the sonic, sound barrier (to break the sound barrier) 5) a crush (BE), police barrier 6) a cultural;… …   Combinatory dictionary

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