词根词缀：corac-, coraco-

【来源及含义】Greek: crowlike; used in the specialized sense of "pertaining to, or connected to the coracoid, the bony process that forms part of the scapular arch [and is so named because its shape resembles that of a crow's beak"]

【同源单词】coracoid, epicoracoid, mesocoracoid, precoracoid, sternocoracoid, subcoracoid

词根词缀：pico-

【来源及含义】Italian: very small or from Spanish, "beak, tip, very small"; and from Latin, beccus, beak; also, a decimal prefix used in the international metric system for measurements

【相关描述】This prefix is used in metric [decimal] system as trillionth [U.S.] and billionth part [U.K.], 10^-12 [0.000 000 000 001]. The metric symbol for pico- is p.

【相关词根词缀】 Related "metric" families: yotta; zetta; exa; peta; tera; giga; mega; kilo; hecto; deka; deci; centi; milli; micro; nano; femto; atto; zepto; yocto.

【同源单词】picoammeter, picoampere, picocurie, picofarad, picogram, picokelvin

词根词缀：rhoncho-, rhonch-

【来源及含义】Greek: a snoring; to snore; from beak, snout

【同源单词】rhonchal, rhonchi, rhonchial, rhonchus

词根词缀：rhyncho-, rhynch-, -rhyncha, -rhynchous

【来源及含义】Greek: snout, beak

【同源单词】Menorhyncha, Ornithorhynchus, Oxyrrhyncha, rhynchocephalian, rhyncholite, rhynchophore

词根词缀：rostr-, rostro-, rostri-

【来源及含义】Latin: beak

【同源单词】angustirostral, birostrate, brevirostral, brevirostrate, conirostres, cultrirostral