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Total record count: 6269.

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Eng ID Term Definition
1101
cosmic radiation
RADIATION, of very high energy and great penetrative power, which emanates from cosmic regions.
1102
cotidal chart
See CHART.
1103
cotidal line
A line on a CHART passing through all points where HIGH WATER occurs at the same TIME.
1104
coulomb
The unit of electric charge in the SI SYSTEM.
1105
counter
An indicator on a machine, for keeping count of turns, strokes, etc., of the machine or its parts.
1106
counter current
A secondary CURRENT setting in a direction opposite to that of a main CURRENT.
1107
course
The intended horizontal direction of travel. It is measured from 0° at the REFERENCE DIRECTION clockwise through 360°; strictly for MARINE N... more
The intended horizontal direction of travel. It is measured from 0° at the REFERENCE DIRECTION clockwise through 360°; strictly for MARINE NAVIGATION, the term applies to the direction to be steered, which sometimes differs from the direction intended to be made good over the GROUND (see DRIFT ANGLE). The course is designated as true, magnetic, compass, or grid as the REFERENCE DIRECTION is TRUE, MAGNETIC, COMPASS or GRID NORTH respectively. See COURSE MADE GOOD and TRACK. The channel in which water flows. See also WATERCOURSE.
1108
course: compass
See COURSE.
1109
course: great circle
The direction of the GREAT CIRCLE through the point of departure and the destination, expressed as the ANGULAR DISTANCE from a REFERENCE DIR... more
The direction of the GREAT CIRCLE through the point of departure and the destination, expressed as the ANGULAR DISTANCE from a REFERENCE DIRECTION, usually north, to the direction of the GREAT CIRCLE. The angle varies from point to point along the GREAT CIRCLE. At the point of departure it is called Initial Great-Circle Course; at the destination it is called Final Great-Circle Course.
1110
course: grid
See COURSE.
1111
course: magnetic
See COURSE.
1112
course: recommended
See TRACK: RECOMMENDED.
1113
course: true
See COURSE.
1114
course line
A LINE OF POSITION approximately parallel to the COURSE.
1115
course made good
The actual TRACK MADE GOOD over the ground (seabed); the direction of the point of arrival from the point of departure. Course made good is ... more
The actual TRACK MADE GOOD over the ground (seabed); the direction of the point of arrival from the point of departure. Course made good is the direction component of the resultant ship's velocity and the water current. Course made good should not be confused with HEADING, or ship's head.
1116
course over ground
The direction of the path over the ground actually followed by a vessel. It is normally a somewhat irregular line. This is a misnomer in tha... more
The direction of the path over the ground actually followed by a vessel. It is normally a somewhat irregular line. This is a misnomer in that courses are directions steered or intended to be steered through the water with respect to a reference meridian. Also called track over ground.
1117
course recorder
A device which makes an automatic record of the HEADINGS of a vessel. See DEAD RECKONING TRACER.
1118
cove
A small BAY.
1119
coverage
The actual area covered (by CHARTS, PHOTO­GRAPHS, etc.). The area controlled by a radiolocation system.
1120
covariance
The arithmetic mean or expected value of the product of the deviations of corresponding values of two variables from their respective mean v... more
The arithmetic mean or expected value of the product of the deviations of corresponding values of two variables from their respective mean values.