aberratio testis
nounUS /æb.ɜˈɹeɪ.ʃi.oʊ ˈtɜs.tɪs/
Etymology Borrowed from Latin aberratio (“aberration”) + testis (“of a testis”), genitive of testis.
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Medicine, Sciences A testis that is descending to a wrong position after born, or not descending at all (cryptorchidism).