Constructed terms- made up of word parts Nonconstructed terms- must be committed to memory, examples are eponym and acronyms Medical terminology- the universal language of medicine Eponym-term derived from a person’s name Construction of words Prefix- word part that is affixed at the beginning of the word, its purpose is to expand or enhance the meaning of the word. Word root-word that provides the primary meaning of the term Suffix-word part that is affixed to the end of a word, it often indicates the word’s part of speech or modifies the words meaning Combining vowel- is used when a word root requires a connecting vowel in order to add a suffix that begins with a consonant or to add another word root when forming a term. It does not add or alter to the meaning of the word root it simply assists us in pronouncing a term. It is usually O, and in some cases I or E. Combining form- root word plus combining vowel Changing singular into plural If the term ends in a , the plural is usually formed by adding an e . If the term ends in is , the plural form is usually formed by changing the is to es . If the term ends in itis , the plural form is itides . If the term ends in on or um , the plural form drops the on or um and adds a . If the term ends in ma , the plural form is changed to mata . If the term ends in y , the plural form drops the y and adds the ending ies . If the term ends in us , the plural form drops the us and adds the ending i. Prefix Definition Word root/combining vowel Definition Suffix Definition a- Without, absence of Abdomin/o abdomen -a singular Abras/o To rub away Actin/o radiation Aden/o gland Albin/p white Ab- Away from Anter/o front -ac Pertaining to Ad- toward -ad Toward Ambi- both -ae plural An- Without or absence of Ana- Up, toward Append/o, appendic/o Appendix -al Pertaining to Anti- Against, opposite of -algia Condition of pain (joint)
Ante- Before -ar Pertaining to -ary Pertaining to -asthenia weakness -atresia Closure or the absence of a normal body opening -cele Hernia, swelling, or protrusion -centesis Surgical puncture -clasia/- clasis/-clast Break apart -desis Surgical fixation or fusion -drome Run or running Bi- two Aut/o self -dynia Pain (tendon) Brady- Slow Bi/o Life -ectomy Surgical excision, removal Circum- around Brachi/o arm Con- With, together or jointly -emesis Vomiting Contra- Counter or aganist Di- double Dia- through Dipl- double Dis- Apart or away Dys- Bad, abnormal, painful, or difficult Ec- Outside or out Ecto- Outside or out Carcin/o cancer
Endo- Within Cardi/o Heart -emia Condition of blood Ep- Upon, over, above, or on top Caud/o tail Cellul/o Little cell Epi- Upon, over, above, on top Cerebr/o Brain, cerebrum -gram A record or image Eso- inward Cephal/o head Eu- Normal or good Cervic/o neck Ex- Outside, away from Chondr/i Gristle, cartilage Chron/o time Chym/o juice Exo- Outside, away from Cran/o skull Extra- outside Crani/o Skull Crypt/o Hidden Cutane/o skin Cyan/o blue Hemi- half Cyt cell Heter- different Hetero- different Hyper- Excessive, abnormally high, above -graph An instrument for recording Hypo- Deficient,
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- Spring '08
- Abdominal cavity