词根：-astr-, -aster-, -stell-

【词根含义】：星

【词根来源】：-astr-和-aster-来源于希腊语astron/aster(星),-stell-来源于拉丁语名词stella, stellae, f(星)。均可追溯至原始印欧语ster-。

【同源单词】：astral, astrodome, astroid, astrology, astronaut

词根词缀：astro-, astr-

【来源及含义】Greek: star, stars, star shaped; also pertaining to outer space

【同源单词】apastron, archaeoastronomer, archaeoastronomy, astro-alchemist, astrobiology, astroblast

词根词缀：-ics

【来源及含义】Greek: a suffix that forms nouns and is usually used to form names of arts and sciences

【同源单词】acoustics, acoustoelectronics, acousto-optic, actinogenics, actinotherapeutics, actinotherapy

词根词缀：physic-, physico-, physi-, physio-, phy-

【来源及含义】Greek: nature, natural, inborn [to make grow, to produce]

【同源单词】abiophysiology, adenohypophysis, adenohypophysitis, aerophysics, aesthophysiology, anapophysis