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

Medical Dictionary

1

cap

play
noun \ˈkap\

Medical Definition of cap

  1. 1:  a natural cover or top: asa:  pileusb:  patella, kneecap

  2. 2:  something that serves as a cover or protection especially for a tip, knob, or end (as of a tooth)

  3. 3British :  cervical cap

  4. 4:  a cluster of molecules or chemical groups bound to one end or a region of a cell, virus, or molecule <the cell surface receptors were redistributed into caps>




2

cap

verb

Medical Definition of cap

cappedcap·ping

  1. transitive verb

  2. 1:  to invest (a student nurse) with a cap as an indication of completion of a probationary period of study

  3. 2:  to cover (a diseased or exposed part of a tooth) with a protective substance

  4. 3:  to form a chemical cap on <the capped end of a messenger RNA>

  5. intransitive verb

  6. :  to form or produce a chemical cap




cap

abbreviation

Medical Definition of cap

  1. 1capacity

  2. 2capsule





Seen and Heard

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

WORD OF THE DAY

February 5, 2016

bread traditionally eaten on Shabbat

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image1037863653

Which of the following refers to thin, bending ice, or to the act of running over such ice?

duvet spindrift pince-nez kittly-benders
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

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

TAKE THE QUIZ