practise /prkt.s/ verb to do some-thing repeatedly in order to improve .
In order to improve flying skills, a trainee pilot must practise regularly.
(NOTE: This word is also written prac-tice in US English.)
pre-/pri/ prefix before pre-arrange /pri .re.n/ verb to
decide or to plan in advance, to prede-termine . Selective calling uses the four-letter code pre-arranged with the controlling authorities.
precaution /pr.k..(.)n/ noun an action taken to prevent or avoid a dan-gerous situation or failure . Personnel concerned with fuelling should take every precaution to prevent outbreaks of fire.
precede 176
precede /pr.sid/ verb to take place or to come before something else . A period of calm often precedes a storm. . When the RVR (runway visual range) is greater than the maximum value which can be assessed, the group will be pre-ceded by the letter indicator P followed by the highest value which can be assessed.
precedence /pres.d(.)ns/ noun the quality of being more important or urgent than something else . to take precedence over to have priority over, to be more important than . Emergency landings take precedence over all oth-ers.
preceding /pr.sid../ adjective tak-
ing place or coming before something else . as mentioned in the preceding paragraph as written in the paragraph before the one being read
precipitation /pr.s.p.te..(.)n/
noun water falling as rain, drizzle, hail, sleet and snow from the atmosphere onto the surface of the Earth . Cloud droplets are small and light at first, but when the droplets grow and become heavier, they fall as precipitation. . Pre-cipitation is classified as light, moder-ate or heavy according to its rate of fall.
precise /pr.sa.s/ adjective exact or accurate . A pinpoint is an indication of the precise position of the aircraft. . A precise interval is essential to obtain correct ignition timing on all cylinders during engine running.
precision /pr.s.(.)n/ noun exact-ness or accuracy . Precision flying is only achieved by constant practice. .
with precision with exactness
precision approach path indica-tor /pr.s.(.)n .pr.υt. pɑθ
.nd.ke.t./ noun a set of lights that enables pilots to judge whether their glide slope is correct on the final approach to landing
precision approach radar /pr.s.(.)n .pr.υt. re.dɑ/ noun a ground-based primary radar system to give vertical and lateral information about an aircraft’s final approach path. Abbreviation PAR
precision area navigation /pr. s.(.)n e.ri. nv.e..(.)n/ noun a standard of performance for navigation that requires an aircraft to remain within 1 nautical mile of the centreline of its course for 95% of the time. Abbreviation PRNAV
pre-departure /pri d.pɑt../
adjective taking place before a depar-ture . Only a few passengers absorb the pre-departure safety information.
pre-departure clearance /pri d. pɑt.. kl..r.ns/ noun a message that the pilot must receive from air traffic control before the plane is allowed to take off
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