词根词缀：proto-, prot-

【来源及含义】Greek: first; foremost, front, earliest form of, original, primitive; chief, principal; usually used as a prefix

【同源单词】apolipoprotein, cryoprotein, fetoprotein, glycoprotein, hyperlipoproteinemia, hypolipoproteinemia

词根词缀：zoo-, zoa-, zo-, -zoic, -zoid, -zoite, -zoal, -zonal, -zooid, -zoon, -zoa, -zoan

【来源及含义】Greek: animal, animals; living beings; life

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

【同源单词】acanthozooid, Actinozoa, actinozoa, actinozoal, actinozoan, agrizoology