IN MATH: 1. n. an operation which undoes another operation. EX. Addition of 5 undoes subtraction of 5.
OPERATION ITS INVERSE addition subtraction subtraction addition multiplication division squaring squarerooting raising to the second power raising to the 1/2 power taking the opposite taking the opposite taking the reciprocal taking the reciprocal
2. n. for addition, the opposite; for multiplication, the reciprocal: for an operation with an identity, one number of a pair of numbers whose operation together results in the identity. FOR EXAMPLE:
number, operation, inverse, identity 5 + 5 = 0 5 + 5 = 0 5 times 1/5 is 1 1/5 times 5 is 1

ENGLISH: 1. as defined in #1 above.
APPLICATION: (see list 280)
This is an editer version of a page from the dictionary MATH SPOKEN HERE!, published in 1995 by MATHEMATICAL CONCEPTS, inc., ISBN: 0962359351.
www.mathnstuff.com/math/spoken/here/1words/i/i25.htm 