or OL., O.L.

Old Latin.

Definition for ol (2 of 5)


(in prescriptions) oil.

Origin of Ol.

From the Latin word oleum

Definition for ol (3 of 5)


or o.l.

(in prescriptions) the left eye.

Origin of O.L.

From the Latin word oculus laevus

Definition for ol (4 of 5)



a suffix used in the names of chemical derivatives, representing “alcohol” (glycerol; naphthol; phenol), or sometimes “phenol” or less definitely assignable phenol derivatives (resorcinol).

Origin of -ol

short for alcohol or phenol

Definition for ol (5 of 5)



variant of -ole2.

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

Examples from the Web for ol

British Dictionary definitions for ol (1 of 2)



suffix forming nouns

denoting an organic chemical compound containing a hydroxyl group, esp alcohols and phenolsethanol; quinol

Word Origin for -ol

from alcohol

British Dictionary definitions for ol (2 of 2)



n combining form

(not used systematically) a variant of -ole 1

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

Science definitions for ol


A suffix used to form the names of chemical compounds having a hydroxyl (OH) group, such as ethanol.

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