Literally "water nonhumanoid being". The most general word for most animals that live in the sea, including fish, whales, octopus, and dolphins. It does not include smaller sea animals, like water bugs, nor animals that go swimming, like seals. 

HQ 10.4: ghotI' is "the most general word for fish" of which there are several varieties.

Every ghotI' is a bIQDep, but not every bIQDep is a ghotI'.

Related vocabulary:

Ha'DIbaH animal (n)
Dep being (nonhumanoid) (n)
ghotI' fish (n)
bIQ water (n)