Glossary
-
TermDefinition
- Abbreviation, Light Characteristic Oc
A light with more light than dark (is on for longer than it is off).
Occulting refers to a type of navigational light in which the light is...
More Details - Abbreviation, Light Characteristic Occulting (Oc)
A light with more light than dark (is on for longer than it is off).
Occulting refers to a type of navigational light in which the light is...
More Details - General Nautical Terminology Ocean Data Acquisition System (ODAS)
The Ocean Data Acquisition System (ODAS) is a system used to collect, process, and transmit various types of oceanographic data. This system...
More Details - Flag / Pennant, Signals & Communication Code Flag Oscar (O)
The International Maritime Signal Flag Oscar.
Meaning
Man overboard. (Often attached to the Danbuoy pole on boats.)
The semaphore flag. - General Nautical Terminology ODAS
The Ocean Data Acquisition System (ODAS) is a system used to collect, process, and transmit various types of oceanographic data. This system...
More Details - General Nautical Terminology OffshoreWind blowing away from the land or “being at sea”
- Courses, RYA Offshore Personal Survival (RYA/World Sailing)The Offshore Personal Survival course is an intensive program designed for sailors participating in offshore and ocean races. Participants learn... More Details
- General Nautical Terminology OilskinsWaterproof clothing worn in foul weather
- Flag Semaphore, Signals & Communication Letter O (Flag Semaphore)
Flag semaphore indicating the letter O.
- Morse Code, Signals & Communication Letter O (Morse Code)
International Morse Code sequence representing the letter O.
- General Nautical Terminology OnshoreWind blowing towards the land or “not at sea”.
- General Nautical Terminology On the Port BowAhead of a vessel at an angle to the bows, but forward of the beam, to the left
- General Nautical Terminology On the Port QuarterAt an angle to the stern of your vessel, but abaft the beam, to the left
- General Nautical Terminology On the Starboard BowAhead of a vessel at an angle to the bows, but forward of the beam, to the right
- General Nautical Terminology On the Starboard QuarterAt an angle to the stern of your vessel, but abaft the beam, to the right
- Phonetic Alphabet, Signals & Communication Oscar
Pronounced: OSS-cah
The term for the letter O in the NATO Phonetic Alphabet.
- General Nautical Terminology OuthaulA line with which the mainsail is hauled out along the boom
- General Nautical Terminology OverfallsTurbulent waters where is a sudden change in depth or where two tidal streams meet
- General Nautical Terminology Overhand loop
A loop that crosses on top of the standing part of a rope when tying a knot.