albino

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A person or animal lacking normal pigmentation, with the result being that the skin and hair are abnormally white or milky and the eyes have a pink or blue iris and a deep-red pupil.
2. n. A plant that lacks chlorophyll.

Century Dictionary and Cyclopedia

1. n. A person of pale, milky complexion, with light hair and pink eyes. This abnormal condition appears to depend on an absence of the minute particles of coloring matter which ordinarily occur in the lowest and last-deposited layers of the epidermis or outer skin. Albinos occasionally occur among all races of men.
2. n. Hence An animal characterized by the same peculiarity in physical constitution. A perfect albino is pure white, with pink eyes; but there may be every degree of departure from the normal coloration, exhibiting every variation in paleness of color or in spotting or marking with white, such pallid or pied individuals being called partial albinos. An albino is always a sport or freak of nature, as when one of a brood of crows or blackbirds is snow-white; but albinism tends to become hereditary and thus established, as in the case of white mice, white rabbits, and white poultry. Any albino, therefore, is to be distinguished from an animal that is naturally white, like the snowy heron or polar bear, or that periodically turns white in winter, like the arctic fox, polar hare, or ptarmigan. Some animals are more susceptible to albinism than others, but probably all are liable to the deficiency or total lack of pigment which constitutes this affection.
3. n. A plant the leaves of which are marked by the absence of chlorophyl, or whose flowers are exceptionally white. Seealbinism.
4. n. In Mexico, a person who has one eighth negro and seven eighths Spanish blood; the child of a Morisco woman (who is the daughter of a mulatto mother and a Spanish father) and of a Spaniard.

Wiktionary

1. adj. congenitally lacking melanin pigmentation in the skin, eyes, and hair or feathers (or more rarely only in the eyes); born with albinism
2. n. countable person or animal congenitally lacking melanin pigmentation in the skin, eyes, and hair or feathers (or more rarely only in the eyes); one born with albinism

GNU Webster's 1913

1. n. A person, whether negro, Indian, or white, in whom by some defect of organization the substance which gives color to the skin, hair, and eyes is deficient or in a morbid state. An albino has a skin of a milky hue, with hair of the same color, and eyes with deep red pupil and pink or blue iris. The term is also used of the lower animals, as white mice, elephants, etc.; and of plants in a whitish condition from the absence of chlorophyll.

WordNet 3.0

1. n. a person with congenital albinism: white hair and milky skin; eyes are usually pink