词根词缀：cleido-, cleid-, clido-, clid-

【来源及含义】Greek: key; a means of locking or a thing that locks [or unlocks] a door; a key, bar, or hook; a combining form that denotes the clavicle or collarbone

【同源单词】cleidal, cleidarthritis, cleidocostal, cleidocranial, cleidohumeral, cleidohyoid

词根词缀：histo-, hist-, histi-

【来源及含义】Greek: tissue [web]; beam or warp of a loom; hence, that which is woven; a web or tissue; used in the sense of pertaining to [body] tissue

【同源单词】histaffine, histaminase, histamine, histamine blocking agent, histamine phosphate, histaminia