[ suhb-tend, suhb- ]
/ səbˈtɛnd, sʌb- /
Save This Word!

verb (used with object)
Geometry. to extend under or be opposite to: a chord subtending an arc.
Botany. (of a leaf, bract, etc.) to occur beneath or close to.
to form or mark the outline or boundary of.
In effect, this quiz will prove whether or not you have the skills to know the difference between “affect” and “effect.”
Question 1 of 7
The rainy weather could not ________ my elated spirits on my graduation day.
Meet Grammar CoachWrite or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing
Meet Grammar CoachImprove Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

Origin of subtend

1560–70; <Latin subtendere to stretch beneath, equivalent to sub-sub- + tendere to stretch; see tend1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use subtend in a sentence

British Dictionary definitions for subtend

/ (səbˈtɛnd) /

verb (tr)
geometry to be opposite to and delimit (an angle or side)
(of a bract, stem, etc) to have (a bud or similar part) growing in its axil
to mark off
to underlie; be inherent in

Word Origin for subtend

C16: from Latin subtendere to extend beneath, from sub- + tendere to stretch out
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