词根词缀：a-, an-

【来源及含义】Greek: prefix; no, absence of, without, lack of; not

【相关描述】These prefixes are normally used with elements of Greek origin, a- is used before consonants and an- is used before vowels.

It affects the meanings of hundreds of words.

There are too many words that use these prefix elements to list all of them on this site; however, there are significant examples listed in this and the other units where they exist.

【同源单词】abacterial, abaptism, abarognosis, abasia, abiocoen, abiogenesis

词根词缀：traumat-, traumato-, trauma-, traum-, -trauma, -traumatic, -traumatically

【来源及含义】Greek > Latin: wound, wounded; bodily injury

【相关词根词缀】 Cross references of word families that are related directly, or indirectly, to: "wound, harm, hurt, injure": noci-; nox-; vulner-.

【同源单词】acoustic trauma, atraumatic, atraumatically, auditory trauma, barotrauma, blunt trauma