an absence of normal pigmentation especially in the skin (as in albinism) or in red blood cells

an absence of normal pigmentation especially in the skin (as in albinism) or in red blood cells

an absence of normal pigmentation especially in the skin (as in albinism) or in red blood cells

an absence of normal pigmentation especially in the skin (as in albinism) or in red blood cells

an absence of normal pigmentation especially in the skin (as in albinism) or in red blood cells

an absence of normal pigmentation especially in the skin (as in albinism) or in red blood cells

an absence of normal pigmentation especially in the skin (as in albinism) or in red blood cells

an absence of normal pigmentation especially in the skin (as in albinism) or in red blood cells

an absence of normal pigmentation especially in the skin (as in albinism) or in red blood cells

an absence of normal pigmentation especially in the skin (as in albinism) or in red blood cells