| albinism |
a congenital condition characterized by the partial or complete absence of pigment in the skin, hair, and eyes. |
| barium sulfate |
an opaque insoluble white powder that is used as a pigment in paints and a filler for plastics and textiles, and is swallowed as a diagnostic aid in x-ray examination of the stomach and intestines. |
| bilirubin |
a reddish-yellow pigment that is formed from the breakdown of heme. Elevated levels in blood are responsible for the yellow color in bruises and in jaundice. |
| bistre |
a pigment made from the soot of burned wood, having a yellowish or dark brown color. [1/2 definitions] |
| boneblack |
the carbonized residue of heat-treated bones, used as a blacking pigment or decoloring agent. |
| carbon paper |
very thin paper coated on one side with carbon or a dark waxy pigment, that is placed between two sheets of paper and produces a copy on the lower sheet of text that is written or typed on the upper. |
| carmine |
a reddish purple pigment made from cochineal. [1/2 definitions] |
| carotene |
a reddish orange hydrocarbon pigment produced in orange, yellow, and dark green plant parts, and required in human nutrition as a source of vitamin A. |
| chlorophyll |
the green pigment in the leaves and stems of plants that is necessary for the production of plant food by photosynthesis. |
| choroid |
the vascular membrane on the eye that contains pigment and lies between the sclera and the retina. [1/2 definitions] |
| -chrome |
color or coloring matter; pigment. [1/3 definitions] |
| chrome |
a pigment derived from chromium, such as chrome yellow. [1/5 definitions] |
| cinnabar |
a reddish mineral that is the main ore of mercury and is sometimes used as a pigment; mercuric sulfide. [1/2 definitions] |
| cobalt blue |
a deep blue pigment made from cobalt oxide. [1/2 definitions] |
| colorant |
something that changes the color of something else, esp. a pigment or dye. |
| encaustic |
of or concerning a type of paint in which pigment is blended with beeswax, which fuses the pigment to a surface upon heating. [1/2 definitions] |
| ferric oxide |
a red-brown solid compound in the natural form of iron ore or rust, processed for use as a pigment and in metallurgy, magnetic tapes and polishing compounds. |
| gamboge |
a brownish gum resin obtained from certain trees of southern Asia, yielding a yellow pigment that is also used as a cathartic. [1/2 definitions] |
| grease paint |
theatrical makeup that is a mixture of grease and a pigment, used by clowns, stage actors, and the like. |
| grease pencil |
a pencil made of compressed grease mixed with pigment, usu. wrapped in paper that unwinds in a spiral to expose the tip, used esp. to write on slick surfaces. |
| hemocyanin |
a bluish blood pigment that bears oxygen and contains copper, found in certain invertebrates. |