词根词缀：ento-, ent-

【来源及含义】Greek: within, inside, inner; used as a prefix [used in many words related to anatomy and biology]

【相关词根词缀】Cross references of word families related directly, or indirectly, to: "internal organs, entrails, inside": enter-; fistul-; incret-; inter-; intra-; splanchn-; viscer-.

【同源单词】entacoustic, entoblast, entochondral, entocnemial, entocoel, entocondyloid

词根词缀：procto-, proct-

【来源及含义】Greek: anus, rectum

【同源单词】ankyloproctia, aproctia, colectomy, coloproctectomy, coloproctostomy, Entoprocta