half plane

noun

Definition of half plane

: the part of a plane on one side of an indefinitely extended straight line drawn in the plane

First Known Use of half plane

1891, in the meaning defined above

Keep scrolling for more

Learn More about half plane

Statistics for half plane

Look-up Popularity

Time Traveler for half plane

The first known use of half plane was in 1891

See more words from the same year

More from Merriam-Webster on half plane

Rhyming Dictionary: Words that rhyme with half plane

Comments on half plane

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

WORD OF THE DAY

to be made up of

Get Word of the Day daily email!

Test Your Vocabulary

Where in the World? A Quiz

  • peter bruegel tower of babel painting
  • What language does pajama come from?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Dictionary Devil

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

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!