finnage

noun

1. (countable, uncountable)fins on something such as a fish.

   “A good Platy should have a deep body, well spread finnage, and bold colour; for example, Red Platies must have a scarlet-red body with the red spreading into the fins. They should not be of the pinky orange shade which we so often see.”

   “Betta splendens comes from further India, where it inhabits stagnant, overgrown waters. Wild fish lack the magnificent finnage characteristic of the cultured forms which dominate the trade, the former being practically impossible to obtain.”

   “The F1 offspring produced would all be gray-green in color with normal finnage. Sampling in the subsequent generation would reveal a number of phenotypes: gray-green with normal fins, gray-green with long fins, pink with normal fins, and ...”

   “A breeder who wants males with great length and breadth of finnage is well advised to choose both the males and females with the most substantial finnage as breeding stock. Doing so will not only increase the finnage ...”