equilateral

[ ee-kwuh-lat-er-uh l, ek-wuh- ]
/ ˌi kwəˈlæt ər əl, ˌɛk wə- /

adjective

having all the sides equal: an equilateral triangle.

noun

a figure having all its sides equal.
a side equivalent, or equal, to others.

Origin of equilateral

From the Late Latin word aequilaterālis, dating back to 1560–70. See equi-, lateral

OTHER WORDS FROM equilateral

Example sentences from the Web for equilateral

British Dictionary definitions for equilateral

equilateral
/ (ˌiːkwɪˈlætərəl) /

adjective

having all sides of equal length an equilateral triangle

noun

a geometric figure having all its sides of equal length
a side that is equal in length to other sides

Derived forms of equilateral

equilaterally, adverb

Scientific definitions for equilateral

equilateral
[ ē′kwə-lătər-əl ]

Having all sides of equal length, as a triangle that is neither scalene nor isosceles.