词根词缀：geno-, gen-, genit-, gener-, -gen

【来源及含义】Greek > Latin: race, kind; line of descent; origin, creation; pertaining to sexual relations, reproduction, or heredity; and more recently, a gene or genes

【同源单词】abiogenesis, abiogenetic, abiogenetically, abiogenous, acrogen, acrometagenesis

词根词缀：therio-, theri-, thero-, ther-, -there, -therium, -theria, -theridae, -therian, -therioid, -theroida

【来源及含义】Greek: animal, wild beast, wild animal

【相关词根词缀】Related "animal" units: anima-; faun-; zoo-.

【同源单词】arsinoitherium, megathere, megatherioid, megatherium, philotherian, philotherianism