definitions

# corollary

[kawr-uh-ler-ee, kor-; especially British, kuh-rol-uh-ree]

### noun, plural cor·ol·lar·ies.

Mathematics. a proposition that is incidentally proved in proving another proposition.
an immediate consequence or easily drawn conclusion.
a natural consequence or result.

## Origin of corollary

1325–75; Middle English < Late Latin corollārium corollary, in Latin: money paid for a garland, a gift, gratuity. See corolla, -ary

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

## Examples from the Web for corollary

British Dictionary definitions for corollary

## corollary

### noun plural -laries

a proposition that follows directly from the proof of another proposition
an obvious deduction
a natural consequence or result

consequent or resultant

## Word Origin for corollary

C14: from Latin corollārium money paid for a garland, from Latin corolla garland, from corōna crown

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

Word Origin and History for corollary

## corollary

n.

late 14c., from Late Latin corollarium "a deduction, consequence," from Latin corollarium, originally "money paid for a garland," hence "gift, gratuity, something extra;" and in logic, "a proposition proved from another that has been proved." From corolla "small garland," diminutive of corona "crown" (see crown (n.)).

Online Etymology Dictionary, © 2010 Douglas Harper

Science definitions for corollary

## corollary

[kôrə-lĕr′ē]
A statement that follows with little or no proof required from an already proven statement. For example, it is a theorem in geometry that the angles opposite two congruent sides of a triangle are also congruent. A corollary to that statement is that an equilateral triangle is also equiangular.