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	Eng ID	Term	Definition
	5901	watch: comparing	A HACK WATCH, particularly one having its ERROR determined by comparison with a CHRONOMETER.
	5902	watch: hack	A WATCH used for timing OBSERVATIONS of CELESTIAL BODIES regulating ship's CLOCKS, etc.
	5903	watch: stop	A WATCH that can be started, stopped, and reset at will, to indicate elapsed time.
	5904	watch buoy	See STATION BUOY.
	5905	water bottle	A device for collecting WATER SAMPLES from varying DEPTHS. They are lowered in an 'open' state to the required DEPTH and can be closed befor... more A device for collecting WATER SAMPLES from varying DEPTHS. They are lowered in an 'open' state to the required DEPTH and can be closed before being hauled up by means of a MESSENGER. Water bottles can be operated in series that is with more than one bottle on the wire rope so that WATER SAMPLES can be taken at a number of DEPTHS on the same CAST. Also called water specimen cup.
	5906	water bottle: insulated (or insulating)	A WATER BOTTLE specially designed for measuring temperatures and collecting WATER SAMPLES at moderate DEPTHS. This type of WATER BOTTLE is i... more A WATER BOTTLE specially designed for measuring temperatures and collecting WATER SAMPLES at moderate DEPTHS. This type of WATER BOTTLE is insulated to maintain the temperature constant while being brought to the surface.
	5907	water bottle: reversing	A WATER BOTTLE specially designed for use in deep sea waters. The bottle is lowered by wire and can be closed watertight at any desired DE... more A WATER BOTTLE specially designed for use in deep sea waters. The bottle is lowered by wire and can be closed watertight at any desired DEPTH, by means of a MESSENGER allowed to slide down the wire and strike the reversing mechanism making the bottle turn upside down. Thus the enclosed WATER SAMPLE is not contaminated by water at higher levels or lost by leakage after the bottle is brought on board. REVERSING THERMOMETERS are attached to reversing water bottles. See EKMAN BOTTLE and NANSEN BOTTLE.
	5908	water colour	See SEA WATER: COLOUR OF.
	5909	water column	A vertical continuum of water from sea surface to sea-bed.
	5910	water content	A ratio; 100 multiplied by the weight of water in a bottom sediment sample divided by the weight of the dried sample, expressed as a percent... more A ratio; 100 multiplied by the weight of water in a bottom sediment sample divided by the weight of the dried sample, expressed as a percentage.
	5911	watercourse	A STREAM of water, a RIVER or a BROOK; also an artificial CHANNEL for the conveyance of water.
	5912	water front	LAND at the end of a STREAM, HARBOUR, etc. The part of a city or town on such LAND; WHARF or dock area.
	5913	water levelling	See LEVELLING.
	5914	waterline	The line marking the junction of LAND and water. The line along which the surface of the water touches a vessel's hull. Also written as two ... more The line marking the junction of LAND and water. The line along which the surface of the water touches a vessel's hull. Also written as two words.
	5915	water-parting	A summit or boundary line separating the drainage districts of two STREAMS or COASTS; a divide or WATERSHED.
	5916	water sample	A portion of water brought up from a certain DEPTH to determine its composition, or physical properties viz: temperature, SALINITY and DENSI... more A portion of water brought up from a certain DEPTH to determine its composition, or physical properties viz: temperature, SALINITY and DENSITY.
	5917	water sampler	Any device for obtaining a WATER SAMPLE. Also called water sampling device. See WATER BOTTLE.
	5918	watershed	WATER-PARTING. The whole region or area contributing to the supply of a RIVER or LAKE; drainage area; catchment area or BASIN.
	5919	water signal	See SIGNAL.
	5920	water sky	Typical dark patches and strips on low CLOUDS over a water area enclosed in ICE or behind its edge.
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