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

Medical Dictionary

cone

play
noun \ˈkōn\

Medical Definition of cone

  1. 1:  a solid having a circular base and sides that slope evenly to a point

  2. 2a:  any of the conical photosensitive receptor cells of the vertebrate retina that function in color vision—compare rodb:  any of a family (Conidae) of numerous somewhat conical tropical gastropod mollusks that include a few highly poisonous forms—see conus

  3. 3:  a cusp of a tooth especially in the upper jaw





Seen and Heard

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

WORD OF THE DAY

immature or lacking adult sophistication

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image567572573

Which of these is a synonym of unctuous?

oily prompt angry maudlin
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ