词根词缀:icosa-, icos-, icosi-, eicosa-
【来源及含义】Greek: the number twenty; used as a prefix
【同源单词】icosacolic, icosahedron, icosandrous, icosanoid, icosasemic, icosian
词根词缀:semeio-, sema-, semato-, semat-, semasio-, semio-, -semic, -semia
【来源及含义】Greek: signal, signals; sign, signs; mark, marks; symbol, symbols
【同源单词】allosematic, aposematic, asemantic, asemasia, asemia, asemic