vas aberrans

vas ab·​er·​rans | \ ˈvaˈsabəˌranz\
plural vasa aberrantia\ ˈ⸗⸗ˌabəˈranch(ē)ə \

Definition of vas aberrans

1 : a blind tube that is occasionally present parallel to the first part of the vas deferens with which or with the epididymis it may communicate
2 vasa aberrantia plural : slender arteries that are only occasionally present and that connect the axillary or brachial artery and the radial or other artery of the forearm or the subclavian artery and the thoracic aorta

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History and Etymology for vas aberrans

New Latin, literally, deviating vessel

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not constant or steady

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