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omn. quadr. hor.

American

Or omn quadr hor

abbreviation

(in prescriptions) every quarter of an hour.

Etymology

Origin of omn. quadr. hor.

From Latin omnī quadrante hōrae

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.