物种形成 wùzhǒngxíngchéng speciation Origin Definitions Defs Strokes Stroke Words Sentences Sents 物种 物種 wùzhǒng noun species The basic unit of biological classification, referring to a group of living things with similar physical and physiological characteristics that can breed together to produce fertile offspring.形成 xíngchéng verb formation the process of being formed or the resulting structure or appearance