To state all 32 points of the compass, starting at north, proceeding clockwise. Sometimes applied to a wind that is constantly shifting.

Related Terms

AERATION

The state of air being suspended in a liquid such as a lubricant or hydraulic fluid.

TO HAUL

To change the course of a sailing vessel to bring the wind farther forward, usually used with up, such as haul up.

HEAD WIND

Wind from ahead of the vessel

CYCLE

A single complete operation consisting of progressive phases starting and ending at the neutral position.

HARMATTAN

The dry, dusty trade wind blowing off the Sahara Desert across the Gulf of Guinea and the Cape Verde Islands. Sometimes called the DOCTOR, because of its supposed healthful properties.

GUST

1. A sudden brief increase in the speed of the wind of more transient character than a squall, and followed by a lull or slackening of the wind. 2. The violet wind or squall that accompanies a thunder- storm.

OIL

A greasy, unctuous liquid of vegetable, animal, mineral or synthetic origin. Hydrocarbons in the liquid state at the prevailing temperature and pressure conditions called.

HOUR-GLASS EFFECT

A radarscope phenomenon which appears as a constriction or expansion of the display near the center of the plan position indicator, which can be caused by a nonlinear time base or the sweep plot starting on the radar indicator at the same instant as the transmission of the pulse. The phenomenon is most apparent when in narrow rivers or close to shore.

CHILL FACTOR

Calculated number based on temperature and wind velocity.

THIXOTROPY

That property of a lubricating grease which is manifested by a softening in consistency as a result of shearing followed by a hardening in consistency starting immediately after the shearing is stopped.

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