词根词缀：atrio-, atri-

【来源及含义】Latin: entrance hall or chamber; upper heart chamber; central room

【同源单词】atrial, atrial electrogram, atrial fibrillation, atriomegaly, atrioseptoplasty, atrioseptostomy

词根词缀：-um

【来源及含义】Greek > Latin: a suffix that forms singular nouns

【相关描述】Here are just a few of the hundreds of words that end with -um.

【同源单词】abandum, abortorium, absorption spectrum, acropodium, actinium, acute delirium