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：-osis, -sis, -sia, -sy, -se

【来源及含义】Greek > Latin: a suffix; actor, process, condition, or state of; result of; expresses a state or abnormal condition or process of some disease

【同源单词】abarognosis, abdominal aponeurosis, acanthosis, acarine dermatosis, acarinosis, acariosis

词根词缀：sidero-, sider- (iron)

【来源及含义】Greek: iron; things made of iron

【相关描述】Don't confuse this element with another sidero- which means "star".

【同源单词】asiderosis, carphosiderite, siderinuria, siderite, sideroblast, siderochrome