thunniform

English

Etymology

Latin thunnus (“tuna”) +‎ -iform

Adjective

thunniform (not comparable)

1. Resembling a tuna.
   • 1999, Christopher McGowan, A Practical Guide to Vertebrate Mechanics:

     The mackerel is a scombroid fish, like the tuna, and is essentially thunniform.

2. Swimming in the manner of a tuna, by undulation of the caudal fin.

Coordinate terms

• (swimming): anguilliform, carangiform