最新医学专业英语词汇构成第1讲-药学医学精品资料

Rule 2: A combining form (root + o) links a suffix that begins with a consonant.
Word Root
Gastr men angi Ureter
Suffix
-scope -rrhea -rrhexis -lith
terms
gastr/o/scope men/o/rrhea angi/o/rrhexis ureter/o/lith
gastr / o / enter / itis
leuk / o / cyt / o / penia electr / o / cardi / o / gram
suffix
• A suffix is a short word part or series of parts added at the end of a root to modify its meaning
最新医学专业英语词汇构成 第1讲-药学医学精品资料
Example
• Microscope • CT • MRI
• HIV • AIDS • SARS
CONCEPT
• Medical terminology is a special vocabulary used by health care professionals for effective and accurate communication.
Rule 3: A combining form (root + o) links a root to another root to form a compound word.
gastr / o / enter / itis
leuk / o / cyt / o / penia
electr / o / cardi / o / gram
the beginning of a word which added before a root to modify its meaning. • Substituting one prefix for another prefix changes the meaning of the word. • A prefix usually indicates a number, time, position, or negation.
-itis
gastritis
gastr-
-ic -ology
gastric gastrology
Three Rules of Word Building
■ Rule 1: A word root links a suffix that begins with a vowel. ■ Rule 2: A combining form (root + o) links a suffix that begins with a consonant. ■ Rule 3: A combining form (root + o) links a root to another root to form a compound word.
Combining Forms
Root + vowel + Suffix
Chem dermat Encephal Neur Therm
o
-therapy -logy -graphy -logy -meter
A combining vowel is used to link a root to another root to form a compound word.
gland)
Combining Forms
• A combining form (CF) is created when a word root is combined with a
o vowel. This vowel is usually an .
• The vowel has no meaning of its own, but enables two word elements to be linked.
• based mainly on Greek Latin 盎格鲁-撒克逊语
心 cardia cor
heart
肠 enteron intestine bowel
Dyspepsia, Eupepsia Abdomen , In vitro , In vivo
A word root may be used alone or combined with other elements to form another word with a different meaning.
Root as a Complete Word
Root as a Part of a Word
alcohol
sperm thyroid
alcoholism (condition marked by impaired control over alcohol use)
spermicide (agent that kills sperm) thyroidectomy (excision of the thyroid
Exercises
ቤተ መጻሕፍቲ ባይዱcarcin _ -oma = carcinoma +
aden-_ = adenocarcinoma
Cardi _ -gram = cardiogram +
Electr-_ = electrocardiogram
Prefix
• A prefix is a word element located at
macro/cyte --- a large cell Micro/cyte --- a small cell
Rule 1: A word root links a suffix that begins with a vowel.
Word Root
leuk Cephal gastr append
Suffix
-emia -algia -itis -ectomy
terms
leukemia cephalalgia gastritis appendectomy