词根词缀：arachno-, arachn-

【来源及含义】Greek: spider; the arachnoidea; when used in medicine this Greek element refers to a membrane, veins, or any web-like structure in the body

【相关词根词缀】 Cross references of word families that are related directly, or indirectly, to: "spider; arachnoidea": acaro-; arano-; mite, mites.

【同源单词】arachnactis, Arachne, arachnean, arachnephobia, arachnid, Arachnida

词根词缀：gastr-, gastro-, gaster-, gastero-, gastri-, -gastria-

【来源及含义】Greek: stomach, belly

【同源单词】aerogastria, agastria, agastric, amphigastrium, amphigastrula, arachnogastria