ratio. The American Heritage® Dictionary of the English Language: Fourth Edition. 2000.

The American Heritage^® Dictionary of the English Language: Fourth Edition. 2000.

ratio

SYLLABICATION:	ra·tio
PRONUNCIATION:	rsh, rsh-
NOUN:	Inflected forms: pl. ra·tios 1. Relation in degree or number between two similar things. 2. The relative value of silver and gold in a currency system that is bimetallic. 3. Mathematics The relation between two quantities expressed as the quotient of one divided by the other: The ratio of 7 to 4 is written 7:4 or 7/4.
ETYMOLOGY:	Latin rati, calculation, from ratus, past participle of rr, to reckon, consider. See ar- in Appendix I.


The American Heritage^® Dictionary of the English Language, Fourth Edition. Copyright © 2000 by Houghton Mifflin Company. Published by the Houghton Mifflin Company. All rights reserved.