follow Dictionary.com

Love words? Sign up for our Word of the Day!

pons asinorum

[as-uh-nawr-uh m, -nohr-] /ˌæs əˈnɔr əm, -ˈnoʊr-/
noun
1.
a geometric proposition that if a triangle has two of its sides equal, the angles opposite these sides are also equal: so named from the difficulty experienced by beginners in mastering it. Euclid, 1:5.
Origin
1745-1755
1745-55; < Latin pōns asinōrum bridge of asses
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
British Dictionary definitions for pons-asinorum

pons asinorum

/ˌæsɪˈnɔːrəm/
noun
1.
the geometric proposition that the angles opposite the two equal sides of an isosceles triangle are equal
Word Origin
Latin: bridge of asses, referring originally to the fifth proposition of the first book of Euclid, which was considered difficult for students to learn
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source

Word of the Day

Difficulty index for pons asinorum

Few English speakers likely know this word

Word Value for pons

6
8
Scrabble Words With Friends

Nearby words for pons-asinorum