Each of the paired male reproductive organs in snakes and lizards.
〔动〕半阴茎（蛇、蜥蜴的雄性成对交配器官之一）
Example sentencesExamples
Despite these anatomical differences, amniote penises and hemipenes share some basic similarities: they are all more or less cylindrical, and they are all hydrostatic.
Sharks do have paired structures for injecting sperm, called hemipenes.
We sexed each snake by probing its cloaca to detect the presence of hemipenes.
Our studies on gartersnakes (Thamnophis sirtalis parietalis) reveal significant morphological asymmetry in this system: testes, kidneys, and hemipenes on the right-hand-side of the body are larger than those on the left.
Sex was determined by everting the hemipenes of males.
Definition of hemipenis in US English:
hemipenis
nounˈheməˌpēnəs
Zoology
Each of the paired male reproductive organs in snakes and lizards.
〔动〕半阴茎（蛇、蜥蜴的雄性成对交配器官之一）
Example sentencesExamples
Sharks do have paired structures for injecting sperm, called hemipenes.
Our studies on gartersnakes (Thamnophis sirtalis parietalis) reveal significant morphological asymmetry in this system: testes, kidneys, and hemipenes on the right-hand-side of the body are larger than those on the left.
We sexed each snake by probing its cloaca to detect the presence of hemipenes.
Despite these anatomical differences, amniote penises and hemipenes share some basic similarities: they are all more or less cylindrical, and they are all hydrostatic.
Sex was determined by everting the hemipenes of males.