词根词缀：penna-

【来源及含义】Latin: feather, feathers; by extension in some situations, wing, wings

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

【同源单词】bipennate muscle, bipennate, brevipennate, empennage, impennate, longipennate

词根词缀：pinni-, pin-

【来源及含义】Latin: pinnatus, feather, feathered; winged

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

【同源单词】imparipinnate, panache, paripinnate, pin feather, pinna, pinnate

词根词缀：pterido-, pterid-

【来源及含义】Greek: fern [from pter[on], "feather, wing"]

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

【同源单词】eurypterid, pteridography, pteridoid, pteridological, pteridology, pteridomania

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：ptilo-, ptil-, ptilono-

【来源及含义】Greek: feather [soft], down

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

【同源单词】cryptoptile, haploptile, mesoptile, metaptile, neossoptile, protoptile