Term: photopigment: a special pigment found in the rods and cones of the retina
Broader: pigment: dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.) | Unrelated: ice rink: a rink with a floor of ice for ice hockey or ice skating
Broader: pigment: dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.) | Unrelated: conformity: correspondence in form or appearance
Broader: pigment: dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.) | Unrelated: selectwoman: an elected member of a board of officials who run New England towns
Broader: pigment: dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.) | Unrelated: whitebait: minnows or other small fresh- or saltwater fish (especially herring); usually cooked whole
Broader: pigment: dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.) | Unrelated: jazz band: a small band of jazz musicians
Broader: pigment: dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.) | Unrelated: salivation: the secretion of saliva
Broader: pigment: dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.) | Unrelated: ammonium chloride: a white salt used in dry cells
Broader: pigment: dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.) | Unrelated: flat file: a file with two flat surfaces
Broader: pigment: dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.) | Unrelated: laughter: the activity of laughing; the manifestation of joy or mirth or scorn
Broader: pigment: dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.) | Unrelated: papilledema: swelling of the optic disc (where the optic nerve enters the eyeball); usually associated with an increase in intraocular pressure