Alternative spelling of leuko- (“white; colourless; leucocyte”)

The 'colorless' form of a dye created as a result of its insoluble form interacting with an alkaline liquor. Color returns to the dye upon oxidation.

Any dye that has a leuco form.

plural of leuco dye

(oncology) A disease in which there is a vastly increased number of white blood cells in the blood.

plural of leucocyte

(immunology) Alternative spelling of leukocyte

lobotomy.

(organic chemistry) Any of various colourless cyanide compounds that are readily converted to coloured forms, most often by exposure to light.

plural of leucocyanide