Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary


noun ar·il \ˈa-rəl, ˈer-əl\

Definition of aril

  1. :  an exterior covering or appendage of some seeds (as of the yew) that develops after fertilization as an outgrowth from the ovule stalk


play \ˈa-rə-ˌlāt, ˈer-ə-\ adjective

Origin and Etymology of aril

probably from New Latin arillus, from Medieval Latin, raisin, grape seed

First Known Use: 1794

Rhymes with aril

Learn More about aril

Seen and Heard

What made you want to look up aril? Please tell us where you read or heard it (including the quote, if possible).