lookdown fish vs lookdown

lookdown fish and lookdown both are nouns.

Word	Noun	Adjective	Verb	Adverb
lookdown fish	Yes	No	No	No
lookdown	Yes	No	No	No

As nouns, lookdown fish and lookdown are synonyms defined as:

lookdown fish and lookdown: similar to moonfish but with eyes high on the truncated forehead

Other synonyms of lookdown fish include Selene vomer.

lookdown fish (noun)	lookdown (noun)
similar to moonfish but with eyes high on the truncated forehead	similar to moonfish but with eyes high on the truncated forehead