sight — the power or faculty of seeing; perception of objects by use of the eyes; vision.
speck — a small spot differing in color or substance from that of the surface or material upon which it appears or lies: Specks of soot on the window sill.
speckle — a small speck, spot, or mark, as on skin.
spot — a rounded mark or stain made by foreign matter, as mud, blood, paint, ink, etc.; a blot or speck.
taint — the area between the testicles or vulva and the anus; the perineum.
tarnish — to dull the luster of (a metallic surface), especially by oxidation; discolor.
vice — any of various devices, usually having two jaws that may be brought together or separated by means of a screw, lever, or the like, used to hold an object firmly while work is being done on it.
whitehead — Alfred North, 1861–1947, English philosopher and mathematician, in the U.S. after 1924.
inflammation — Pathology. redness, swelling, pain, tenderness, heat, and disturbed function of an area of the body, especially as a reaction of tissues to injurious agents.
papule — a small, somewhat pointed elevation of the skin, usually inflammatory but nonsuppurative.
pustule — Pathology. a small elevation of the skin containing pus.
papula — one of the small, ciliated projections of the body wall of an echinoderm, serving for respiration and excretion.