Reef

urn:mrn:iala:dic:1-2-0215

A long rocky or coral formation mainly close enough to the surface of the sea to be a danger to vessels.

Reference: I.H.B.

Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)

English

ampere

charge current

Intensity

Centre of buoyancy

International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM