obtuse angle


noun
  1. an angle greater than 90° but less than 180°.

Origin of obtuse angle

1
First recorded in 1560–70

Other words from obtuse angle

  • ob·tuse-an·gled, ob·tuse-an·gu·lar [uhb-toos-ang-gyuh-ler, -tyoos], /əbˈtusˈæŋ gyə lər, -ˈtyus/, adjective

Words Nearby obtuse angle

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use obtuse angle in a sentence

  • The second Swastika has its ends bent at an obtuse angle to the left, and at the extremities the lines taper to a point.

    The Swastika | Thomas Wilson
  • Directly across from them at a table which formed a wide obtuse angle with theirs were four girls.

  • Here another line of marked trees was found, the course of which formed an obtuse angle with the one we had followed.

    A Year in the Fields | John Burroughs
  • It consists of a wooden frame supporting a flat glass bulb with a long neck bent upward at an obtuse angle (Fig. 53).

  • The trunk appears to be composed of two parts joined together, and forming a more or less obtuse angle (Fig. 56).

    The Insect World | Louis Figuier

Scientific definitions for obtuse angle

obtuse angle

[ ŏb-tōōs ]


  1. An angle whose measure is between 90° and 180°. Compare acute angle.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Cultural definitions for obtuse angle

obtuse angle

An angle that measures more than 90 degrees but less than 180 degrees. (Compare acute angle and right angle.)

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.