Definition of crestfish in English:

crestfish

Syllabification: crest·fish
Pronunciation: /ˈkrestˌfiSH
 
/

noun (plural same or crestfishes)

A very elongated silvery marine fish with a crimson dorsal fin running the full length of its body and a forehead that projects forward into a long filament.
  • Lophotus lacepedei, family Lophotidae

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Word of the day punctum
Pronunciation: ˈpʌŋ(k)təm
noun
a small, distinct point