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

Medical Dictionary

grain

play
noun \ˈgrān\

Medical Definition of grain

  1. 1a:  a seed or fruit of a cereal grassb:  the seeds or fruits of various food plants including the cereal grasses and in commercial and statutory usage other plants (as the soybean)c:  plants producing grain

  2. 2:  a small hard particle or crystal (as of sand or salt)

  3. 3:  a unit of avoirdupois, Troy, and apothecaries' weight equal to 0.0648 gram or 0.002286 avoirdupois ounce or 0.002083 Troy ounce—abbreviation gr





Seen and Heard

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

WORD OF THE DAY

February 10, 2016

to put in good humor

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?

spindrift kittly-benders duvet pince-nez
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