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OL

1 American  
Or OL.,

abbreviation

  1. Old Latin.


-ol 2 American  
  1. a suffix used in the names of chemical derivatives, representing “alcohol” (glycerol; naphthol; phenol ), or sometimes “phenol” or less definitely assignable phenol derivatives (resorcinol ).


-ol 3 American  
  1. variant of -ole.


Ol. 4 American  

abbreviation

  1. (in prescriptions) oil.


O.L. 5 American  
Or o.l.

abbreviation

  1. (in prescriptions) the left eye.


-ol 1 British  

suffix

  1. denoting an organic chemical compound containing a hydroxyl group, esp alcohols and phenols

    ethanol

    quinol

"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

-ol 2 British  

combining form

  1. (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

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


Etymology

Origin of -ol2

Short for alcohol or phenol

Origin of Ol.4

From the Latin word oleum

Origin of O.L.5

From Latin oculus laevus

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“You need some good ol’-fashioned humility and honesty, too, nephew.”

From Literature

“It does get a little tiring doing the same ol’ thing.”

From Literature

“I have to bolt. Mr. Howe and I promised to feed our pals some good ol’ chop suey.”

From Literature

“I’m sick as a big ol’ dog,” she explains.

From Los Angeles Times

That big ol’ sparkler had been on the scene since early last year, debuting publicly at the 2025 Golden Globe Awards a year ago January.

From Los Angeles Times