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Related to anorchidism: anorchism
congenital absence of one or both testes.
anorchiaThe congenital absence of one or more testes. Anorchism is the term preferred by some major medical lexicons (Stedman’s Medical Dictionary, International Dictionary of Medicine), which in the spoken form it may be misunderstood as anarchism.
[G. an- priv. + orchis, testicle]