n. a person in whose body fluids it is not possible to detect soluble forms of the A, B, or O agglutinogens that determine blood group. Compare secretor.
n. a benign tumour of nonglandular and nonsecretory epithelium forming a nipple-like growth on the surface of the skin or a mucous membrane. Examples include bladder papillomas. —papillomatous adj.... papilloma
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