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：cephalo-, cephal-; -cephalic, -cephalism, -cephalous, -cephalus; -cephaly

【来源及含义】Greek: head

【相关描述】Sometimes these "head" elements are also written as: kephalo-, kephal-, etc.

【同源单词】abrachiocephalia, abrachiocephalus, acanthocephalid, acepalothoracia, acephalia, acephaline

词根词缀：cheiro-, cheir-, chiro-, chir-, -cheiria, -chiria

【来源及含义】Greek: hand; pertaining to the hand or hands

【相关词根词缀】 Related "hand" units: Dextro and Sinsitro History; Hands as Objects of Art; Hands: Mechanical Marvels; manu-; palm.

【同源单词】acephalochiria, acheiral, acheiria, acheiropodia, acheirus, achirus