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：-ic

【来源及含义】Greek: a suffix; pertaining to; of the nature of, like; in chemistry, it denotes a higher valence of the element than is expressed by -ous

【同源单词】abdominocystic, abdominopelvic, abdominoscopy, abdominothoracic, abiogenetic, abiogenic

词根词缀：leuco-, leuc-, -leucemia; leuko-, leuk-, -leukemia

【来源及含义】Greek: leukos, white; the primary meaning now is the color "white"; but it also includes the meanings of "light, clear, bright"

【相关词根词缀】Inter-related cross references, directly or indirectly, involving word units meaning "white": albo-; albumino-.

【同源单词】adipoleucocyte, aleukemia, aleukemic, aleukia, aleukocyte, aleukocytic