词根词缀：psychro-, psychr-

【来源及含义】Greek: cold

【相关词根词缀】 Cross references of word families that are related directly or indirectly to "winter, freezing, frost, and/or cold": algid- (cold, chilly); cheimo-, chimo- (winter, cold); crymo-, krymo- (cold, chill, frost); cryo-, kryo-; (cold, freezing); frigo-, frig- (cold, frost); gel-, gelati- (freeze, frost, congeal); hiber- (winter, wintry); pago- (cold, freezing); rhigo- (cold, frost; shiver).

【同源单词】esthesioscopy, psychric, psychroalgia, psychrocleistogamic, psychroesthesia, psychrokliny

词根词缀：psylli-, psyll-

【来源及含义】Greek > Latin: flea

【同源单词】psyllid, Psyllidae, psyllids, psyllium, psylloid, Sarcopsyllidae

词根词缀：ptarmo-, ptarm-

【来源及含义】Greek: sneeze, a sneezing

【同源单词】aptarmia, ptarmia, ptarmic, Ptarmica, ptarmical, ptarmigenic

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：pterygo-, pteryg-

【来源及含义】Greek: wing

【同源单词】acanthopterygian, actinopterygian, Actinopterygii, apterygial, Apterygota, archipterygium

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

词根词缀：ptocho-, ptoch-

【来源及含义】Greek: a person who crouches; than extended to a beggar, poor; paupers; modernized meanings: street people, homeless, vagrant, living in poverty

【同源单词】ptochocracy, ptochocrat, ptochogony, ptochoist, ptochologist, ptochology

词根词缀：ptomato-, ptomat-, pto-, -ptosia, -ptosis, -ptoma, -ptot-

【来源及含义】Greek: fall, a falling down of an organ; drooping, sagging; corpse

【同源单词】apoptosis, asymptomatic, asymptote, asymptotic, asymptotical, blepharoptosis

词根词缀：ptyalo-, ptyal-, ptya-, pty-

【来源及含义】Greek: spittle, salivia; salivary gland

【相关词根词缀】Other related saliva and/or spittle units: salivo-; sialo-; sput-.

【同源单词】aptyalism, glycoptyalismm glycosialia, hyperptyalism, hypoptyalism, oligoptyalism, pseudoptyalism