词根词缀：ptero-, pter-, -ptera, -pteron, -pteryx, -ptery, -pterous

【来源及含义】Greek: feather; wing, winglike

【相关词根词缀】 Related "feather, feather-like; soft down, plumage" word units: penna-; pinni-, pin-; plum-, -plume; pterido-; ptilo-.

【同源单词】Aphaniptera, apterex, apteria, apterous, apteryx, Archaeopteryx

词根词缀：rhino-, rhin-, -rhine, -rrhine, -rhinous, -rrhinous

【来源及含义】Greek: nose

【同源单词】allergyrhinitis, amphirhinal, arachnoidal villi, arhinia, brachyrhinia, cacorrhinia