释义 |
〔spiculum〕A spicule or similar needlelike structure, such as a spine of an echinoderm or a capulatory organ in a nematode.小骨针:骨针或相似的针状结构,例如棘皮动物的刺或线虫的交合毛〔mobile〕Marked by the easy intermixing of different social groups:交融的:以不同社会集团的容易交合为特征的:〔coitus〕Sexual union between a male and a female involving insertion of the penis into the vagina.性交,交媾:雄性阴茎插入雌性阴道的雌雄性间的交合 |