词根词缀：dactylo-, dactyl-, dactylio-, -dactyl, -dactyla, -dactylia, -dactylic, -dactylism, -dactyloid, -dactylous, -dactyly

【来源及含义】Greek: finger, toe

【相关词根词缀】 Cross references directly, or indirectly, involving the "toes" and "fingers": digit-; hallu-; phalang-.

【同源单词】acrocephalopolysyndactyly, acrocephalosyndactylia, acrocephalosyndactyly, adactyl, adactylia, adactylism

词根词缀：-ism, -ismus

【来源及含义】Greek, ismos; Latin, ismus: a suffix: belief in, practice of, condition of, process, characteristic behavior or manner, abnormal state, distinctive feature or trait

【同源单词】abaptism, abolitionism, abortionism, abrakophilism, absenteeism, absolutism

词根词缀：peri-

【来源及含义】Greek: around, enclosing, surrounding, about, near, close; often used as a prefix

【相关词根词缀】 Related "around, round, surrounding" units: ambi-; ampho-; circ-; circum-; cyclo-, -cycle; gyro-.

【同源单词】abdominal fascia, adominoperineal, aeroperitonia, anoperineal, colpoperineoplasty, colpoperineorrhaphy

词根词缀：perisso-, periss-

【来源及含义】Greek: extraordinary; superfluous, redundant; odd, odd-numbered

【同源单词】perissodactyl, Perissodactyla, perissodactylism, perissodactylous, perissology, perissoped