a designated ATC area. Abbreviation
CTR convection /k.nvek.(.)n/ noun the process by which hot air rises and cool air descends . Heat is transferred from the Earth’s surface upwards largely by convection.
convective /k.nvekt.v/ adjective
referring to convection, or something which is affected by the vertical circula-tion of air . convective movement movement caused by warm air rising and cool air descending
convective clouds /k.nvekt.v
klaυdz/ plural noun clouds formed as a result of warm moist air rising and con-densing at altitude
convenience /k.nvini.ns/ noun 1.
personal comfort and benefit . Reading lights are provided for passengers’ con-venience. . at your convenience when it is least troublesome for you 2. ease of understanding . For convenience we will assume that the Earth is round. 3.
usefulness, or easiness to use
convenient /k.nvini.nt/ adjective
1. useful . The circular slide rule has a convenient scale for converting weights and volumes. 2. suitable and unlikely to cause problems . We must arrange a convenient time and place for the meet-ing.
convention /k.nven..n/ noun 1. an
idea which because of long usage has become normal and accepted . By con-vention, wind direction is the direction from which the wind blows. 2. a meeting involving large numbers of people and long discussions in order to arrive at an agreed course of action often outlined in a public statement . the Tokyo Con-vention
conventional /k.nven.(.)n(.)l/ adjective usual or familiar to most peo-ple . Every pilot must know the conven-tional symbols used for depicting the various ground features on charts.
converge 58
converge /k.nvd/ verb to come together at a particular point . Meridi-ans converge towards the poles. . air-craft on converging courses aircraft on courses which may eventually be too close to each other if no corrective action is taken. Opposite diverge
convergence /k.nvd.ns/ noun
the fact of coming together at a particu-lar point . The inter-tropical conver-gence zone is the zone in which the trade winds from the two hemispheres approach each other. . There is conver-gence of meridians of longitude at the north and south poles. Opposite diver-gence
converse /k.nvs/ noun the oppo-site . The converse of port is starboard.
. warm air rises – the converse is also true in other words, cool air descends
conversion /k.nv.(.)n/ noun 1. a
change to a different system or set of rules . The conversion of km into nm is not difficult. 2. . conversion course
flying training which enables and qual-ifies a pilot to fly a different aircraft type
convert /k.nvt/ verb to change to a different system or set of rules . to con-vert km into nm . How do you convert degrees C into degrees F?
converter /k.nvt./ noun a device which alters the form of something . A backup converter converts the alternat-ing current power into direct current.
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