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：olig-, oligo-

【来源及含义】Greek: prefix; scanty, little, meager, tiny, infrequent; abnormally few or small

【相关词根词缀】Related "few, small, less, little" word units: micro-; mini-; mio-, meio-; nano-.

【同源单词】oligacanthous, oligandrous, oliganthous, oligarch, oligarchic, oligarchical