leuko-

WordReference Random House Unabridged Dictionary of American English © 2026

leuko-, 

1. a combining form with the meanings "white,'' "white blood cell,'' used in the formation of compound words:
   leukopoiesis; leukotomy.

Also, leuco-;
 [esp. before a vowel,] leuk-. 

• Greek leuko-, combining form of leukós white, bright

Collins Concise English Dictionary © HarperCollins Publishers::

leuko- combining_form

1. a variant of leuco-

WordReference Random House Unabridged Dictionary of American English © 2026

leuco-, 

1. var. of leuko-. 

Also,[esp. before a vowel,] leuc-. 

Collins Concise English Dictionary © HarperCollins Publishers::

leuco-, leuko-(before a vowel)leuc-, leuk- combining_form

1. white or lacking colour: leucocyte, leucorrhoea, leukaemia

Etymology: from Greek leukos white