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TermDefinition
- Occulting LightA rhythmic light in which the duration of light in each period is longer than the total duration of darkness Read more
- Ocean Data Acquisition System The Ocean Data Acquisition System (ODAS) is a system used to collect, process, and transmit various types of oceanographic data. This system(...) Read more
- ODAS The Ocean Data Acquisition System (ODAS) is a system used to collect, process, and transmit various types of oceanographic data. This system(...) Read more
- OffshoreWind blowing away from the land or “being at sea” Read more
- OilskinsWaterproof clothing worn in foul weather Read more
- On the Port BowAhead of a vessel at an angle to the bows, but forward of the beam, to the left Read more
- On the Port QuarterAt an angle to the stern of your vessel, but abaft the beam, to the left Read more
- On the Starboard BowAhead of a vessel at an angle to the bows, but forward of the beam, to the right Read more
- On the Starboard QuarterAt an angle to the stern of your vessel, but abaft the beam, to the right Read more
- OnshoreWind blowing towards the land or “not at sea”. Read more
- Phonetic Alphabet Oscar Phonetic alphabet letter O. Meaning: The Oscar flag signals "Man overboard." Often seen on the top of a Danbouy MOB recovery(...) Read more
- OuthaulA line with which the mainsail is hauled out along the boom Read more
- OverfallsTurbulent waters where is a sudden change in depth or where two tidal streams meet Read more
- Overhand loop A loop that crosses on top of the standing part of a rope when tying a knot. Read more