Backfin

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The rear fin of a fish.

    "The tail and backfin of an ide can be greyish."

Example

More examples

"The tail and backfin of an ide can be greyish."

Etymology

From back + fin.

More for "backfin"

SynonymsSentencesPronunciationTranslate

Next best steps

Find stronger synonymsSee usage examplesCheck pronunciationBrowse writing guides

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.