n. [ NL., fr. Gr. &unr_; twin. ] (Chem.) A rare metallic substance usually associated with the metal cerium; -- hence its name. It was formerly supposed to be an element, but has since been found to consist of two simpler elementary substances, neodymium and praseodymium. See Neodymium, and Praseodymium. [ 1913 Webster ]
‖n. [ NL., fr. Gr. &unr_;; 'epi` upon + &unr_; testicle. ] (Anat.) An oblong vermiform mass on the dorsal side of the testicle, composed of numerous convolutions of the excretory duct of that organ. -- Ep`i*did"y*mal a. [1913 Webster]
n. [ NL. See Para-, and Epididymis. ] (Anat.) A small body containing convoluted tubules, situated near the epididymis in man and some other animals, and supposed to be a remnant of the anterior part of the Wolffian body. [ 1913 Webster ]
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