semenology
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theriogenology — the·rio·ge·nol·o·gy .thir ē ō jə näl ə jē n, pl gies a branch of veterinary medicine concerned with veterinary obstetrics and with the diseases and physiology of animal reproductive systems the·rio·gen·o·log·i·cal .thir ē ō .jen ə läj i kəl adj * … Medical dictionary