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1903, in reference to the work of Gregor Johann Mendel (1822-1884), Austrian biologist who enunciated the laws of heredity. Related: Mendelian.
Mendelism Men·del·ism (měn'dl-ĭz'əm) or Men·de·li·an·ism (měn-dē'lē-ə-nĭz'əm, -dēl'yə-)
The theoretical principles of heredity formulated by Gregor Mendel; Mendel's laws.