Aplasia



defective development or congenital absence of a limb, organ, or other body part.
noun
(pathol) congenital absence or abnormal development of an organ or part
n.

1885, medical Latin, from Greek a-, privative prefix (see a- (3)), + -plasia.

aplasia a·pla·si·a (ə-plā’zē-ə, -zhə)
n.

Congenital absence of an organ or tissue.

Incomplete, retarded, or defective development of an organ or tissue.

Cessation of the usual regenerative process in an organ or tissue.

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    aplasia axialis extracorticalis aplasia axialis extracorticalis aplasia ax·i·a·lis ex·tra·cor·ti·ca·lis (āk’sē-ā’lĭs ěk’strə-kôr’tĭ-kā’lĭs) n. See Merzbacher-Pelizaeus disease.

  • Aplasia cutis congenita

    aplasia cutis congenita aplasia cutis congenita aplasia cu·tis con·gen·i·ta (kyōō’tĭs kən-jěn’ĭ-tə) n. The congenital absence or deficiency of a localized area of skin, usually on the scalp, with the base of the defect covered by a thin translucent membrane.



  • Aplastic

    defective development or congenital absence of a limb, organ, or other body part. adjective relating to or characterized by aplasia failing to develop into new tissue; defective in the regeneration of tissue, as of blood cells: aplastic anaemia noun (pathol) congenital absence or abnormal development of an organ or part n. 1885, medical Latin, from […]

  • Aplastic anemia

    severe anemia due to destruction or depressed functioning of the bone marrow, usually resulting from bone cancer, radiation, or the toxic effects of certain drugs or chemicals. aplastic anemia n. A form of anemia in which the capacity of the bone marrow to generate red blood cells is defective, caused by bone marrow disease or […]



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