词根词缀：micro-, micr-
【来源及含义】Greek: small, tiny; also, a decimal prefix used in the international metric system for measurements
【相关描述】One millionth part of [something]; in the metric system: 10-6 [0.000 001].
【相关词根词缀】Related "few, small, less, little" word units:
mini-;
mio-, meio-;
nano-;
oligo-, olig-.
Related "metric" families:
yotta;
zetta;
exa;
peta;
tera;
giga;
mega;
kilo;
hecto;
deka;
deci;
centi;
milli;
nano;
pico;
femto;
atto;
zepto;
yocto.
【同源单词】micracoustic, microaerophil, microaerosol, microaerotonometer, microaesthete, microanalysis
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