solution /s.lu.(.)n/ noun 1. an answer to or means of solving a prob-lem or difficulty . The navigation com-puter or slide rule is suitable for the solution of many different types of mathematical problem. 2. a liquid made by dissolving a solid or gas in water or some other fluid . Spillage from a lead acid battery may be neutralised by washing with a dilute solution of sodium bicarbonate.
solve /s.lv/ verb to find the answer to, or a way of removing, a difficulty or problem . The triangle of velocities is used to solve navigation problems.
213 south-west
somewhat /smw.t/ adverb to
some extent, a bit . The usefulness of pure aluminium as a structural material is somewhat limited.
sonic /s.n.k/ adjective 1. referring to sound 2. within the human hearing range . sonic speed the speed of sound
sonic boom /s.n.k bum/ noun a
noise, due to shock waves, produced when an aircraft travels through the air faster than the speed of sound
sophisticated /s.f.st.ke.t.d/
adjective highly developed and com-plex . The electronic flight instrument system, commonly known as EFIS, is a highly sophisticated type of flight direc-tor system. . The A340 is a sophisti-cated aeroplane.
sortie /s.ti/ noun an operational flight by one aircraft . The test pro-gramme has accumulated 1,146 sorties.
sound /saυnd/ adjective strong . A
stressed skin structure is used on mod-ern aircraft which gives a sound struc-ture with relatively low weight. . noun
something that can be heard and is caused by vibration of the surrounding air . FM (frequency modulation) gives a wide range of sounds or a very high data rate. . verb 1. to make a noise . If the trim position is incorrect, a warning horn will sound when number three thrust lever is advanced for take off. . sonic 2. to seem . It sounds as if the pilot is having trouble.
source /s.s/ noun a supply . Under emergency conditions, the battery may be the only source of electrical power. . Jet aircraft have a ready source of com-pressed air from the compressor sec-tions of their engines.
south /saυθ/ noun a compass point on the mariner’s compass 180° clockwise from due north and directly opposite north . Fly towards the south. . south facing mountain side the face of a mountain which looks towards the south . adjective 1. referring to areas or regions lying in the south, referring to the compass point 180° from north . the south side of the river 2. the southern part of a region or country . South America . South Dakota . adverb
towards the south . The aircraft is fly-ing south.
southbound /saυθbaυnd/ adjective
travelling towards the south . a south-bound flight
south-east /saυθ ist/ noun the
direction between south and east . a region in the south-east of Canada .
adjective 1. situated in the south-east . the south-east coast of England 2.
blowing from or coming from the south-east . adverb towards the south-east . We were heading south-east.
|
