navigable semicircle
nounNautical.
the less violent half of a cyclone; the half blowing in the direction opposite to that in which the cyclone is moving and in which a vessel can run before the wind.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use navigable semicircle in a sentence
Left or navigable semicircle,—Steam and sailing vessels: Bring the wind on the starboard quarter, note the course and hold it.
Wind and Weather | Alexander McAdieThe ship a has the wind at east-northeast; she is to the left of the storm track, or technically in the navigable semicircle.
Meteorology | Charles Fitzhugh Talman
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