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：-oid, -oidal, -oidism, -odic

【来源及含义】Greek: a suffix; like, resembling, similar to, form

【相关词根词缀】 Inter-related cross references, directly or indirectly, involving word units dealing with "form, shape, appearance": eido-; figur-; form-; icono-; ideo-; imag-; morpho-; typo-.

【同源单词】acanthoid, acanthozooid, acaroid, acidoid, acromegaloidism, acrostichoid