| Cachexia | |
| Calcium | |
| Calculus | |
| Cancer | Refers to the various types of malignant neoplasms that contain cells growing out of control and invading adjacent tissues, which may metastasize to distant tissues. |
| Cancerous | See Malignant. |
| Candida | See Candidiasis. |
| Candidiasis | |
| Canker Sores | |
| Capillary | Any of the smallest blood vessels connecting arterioles with venules and forming networks throughout the body. |
| Carbohydrate | See Carbohydrates. |
| Carbohydrates | |
| Carbonylation | A pathological step in the age-related degradation of the body's proteins. |
| Carbuncle | See Boil. |
| Carbuncles | See Boil. |
| Carcinogen | |
| Carcinogenic | See Carcinogen. |
| Carcinogenicity | See Carcinogen. |
| Carcinoma | |
| Cardiac | |
| Cardiac Asthma | Sudden intensification of impaired breathing associated with heart disease such as left ventricular failure; cardiasthma. |
| Cardiac Glycoside | Compound consisting of a plant steroid with one or more sugars that exerts an effect on the contraction and conduction of the heart muscle. |
| Cardiac Neurasthenia | General fatigue originating from dysfunction of the heart. |
| Cardiac Neurosis | Heart irregularity of psychogenic origin. |
| Cardiomegaly | Enlargement of the heart. |
| Cardiospasm | |
| Cardiovascular | |
| Carminative | |
| Carnitine | |
| Carotene | |
| Carotenoid | |
| Carpal Tunnel Syndrome | |
| Cartilage | |
| CAT Scan | See Computerised Tomography. |
| Catabolic | |
| Cataplasm | Poultice. |
| Cataplexy | |
| Cataract | |
| Cataracts | See Cataract. |
| Catarrh | |
| Catecholamine | |
| Catecholamines | See Catecholamine. |
| CBC | See Complete Blood Count. |
| cc | Cubic Centimeter. 29.6cc is 1 fl. oz; 1000cc is 1 liter; 3788cc is 1 gallon. |
| CD3 | White blood cells are composed primarily of neutrophils, monocytes and lymphocytes. Lymphocytes are either T-cells or B-cells. T-cells (CD3 cells) are divided into T-helper (CD4 cells) and T-suppressor/cytotoxic (CD8 cells) cells. |
| CD4 | A symbol for glycoprotein expressed on the surface of some lymphocytes, including Helper T-cells. Human CD4 is the receptor that serves as a docking site for HIV viruses on certain lymphocyte cells. Binding of the viral glycoprotein gp120 to CD4 is the first step in viral entry, leading to the fusion of viral and cell membrane. White blood cells are composed primarily of neutrophils, monocytes and lymphocytes. Lymphocytes are either T-cells or B-cells. T-cells (CD3 cells) are divided into T-helper (CD4 cells) and T-suppressor/cytotoxic (CD8 cells) cells. |
| CD8 | White blood cells are composed primarily of neutrophils, monocytes and lymphocytes. Lymphocytes are either T-cells or B-cells. T-cells (CD3 cells) are divided into T-helper (CD4 cells) and T-suppressor/cytotoxic (CD8 cells) cells. |
| CDC | United States' Center for Disease Control. |
| Celiac | |
| Celiac Disease | |
| Cellular Immunity | |
| Cellulase | |
| Cellulases | See Cellulase. |
| Cellulite | |
| Cellulitis | |
| Centimeter | A metric unit of length equaling one hundredth of a meter, or ten millimeters. There are 2.54 millimeters in one inch. |
| Centimeters | See Centimeter. |
| Central Nervous System | |
| Cephalalgia | |
| Cephalic | Pertaining to the head. |
| Cervical Dysplasia | |
| Cervix | |
| CFS | See Chronic Fatigue Syndrome. |
| Chapped | Roughened, reddened, or cracked skin, especially as a result of cold or exposure. |
| Checkup | A thorough physical examination that includes a variety of tests depending on the age, sex and health of the person. |
| Check-up | See Checkup. |
| Checkups | See Checkup. |
| Check-ups | See Checkup. |
| Cheilitis | |
| Chelation | |
| Chemical Hypersensitivity | See Multiple Chemical Sensitivity. |
| Chemotherapy | |
| Chicken Pox | |
| Chlamydia | |
| Chloralized | Anesthetized using chloral hydrate. |
| Chlorella | |
| Cholagogue | |
| Cholangitis | |
| Cholecystalgia | See Cholecystitis. |
| Cholecystitis | |
| Cholecystokinetic | Increasing secretion of the gastrointestinal hormone cholecystokinin, which promotes emptying of the gallbladder. |
| Cholelithiasis | |
| Choleretic | |
| Cholestasis | |
| Cholestatic | |
| Cholesterol | |
| Choline | |
| Chologenic | Producing bile. |
| Chondrosis | Formation of cartilaginous tissue; term used in the past for a cartilaginous tumor. |
| Chromium | |
| Chronic | Usually referring to chronic illness: Illness extending over a long period of time. |
| Chronic Fatigue | See Chronic Fatigue Syndrome. |
| Chronic Fatigue Syndrome | |
| Chronic Renal Failure | |
| Chronic Renal Insufficiency | See Chronic Renal Failure. |
| Chronic Thyroiditis | See Thyroiditis. |
| Chronicity | See Chronic. |
| Chronotropic | Affecting time or rate, especially heart rate. |
| Chyme | |
| Chymotrypsin | |
| Cicatricial Keloid | Nodular, firm, movable, nonencapsulated mass of scar tissue, tender and frequently painful. |
| Ciliary | Often Ciliary activity: Activity of the eyelashes or any hairlike processes (cilia). |
| Cirrhosis | |
| Claudication | |
| Clear Cell Sarcoma | |
| Climacteric | |
| Clonic | |
| Clotting Factor | See Clotting Factors. |
| Clotting Factors | |
| Cluster Headache | |
| Cluster Headaches | See Cluster Headache. |
| cm | See Centimeter. |
| CMV | See Cytomegalovirus. |
| CNS | See Central Nervous System. |
| Cobalamin | |
| Cobalamine | See Cobalamin. |
| Coccidioidomycosis | |
| Coenzyme | |
| Cofactor | |
| Cofactors | See cofactor. |
| Cold Sore | |
| Cold Sores | See Cold Sore. |
| Colectomies | See colectomy. |
| Colectomy | Surgery during which all or part of the colon (also called the large intestine) is removed. |
| Colic | Cramping or spasms of a smooth muscle tube, such as the uterus (menstrual cramps) the ureters (passing kidney stones) or the stomach (stomach ache). |
| Colitis | |
| Colitis Ulcerosa | See Ulcerative Colitis. |
| Collagen | |
| Collagenosis | A disease affecting collagen. |
| Colon | |
| Colonectomy | See colectomy. |
| Colonic | See Colon. |
| Colonoscope | |
| Colonoscopy | See Colonoscope. |
| Colorectal Cancer | |
| Colostrum | |
| Comminuted | Crushed, pulverized. |
| Commission E | The body of scientists and panel of experts that provides advice on herbal treatments and evaluates the safety, effectiveness and dosage of medicinal herbs; Germany's equivalent of the FDA. |
| Complete Blood Count | |
| Complex Carbohydrate | |
| Complex Carbohydrates | See Complex Carbohydrate. |
| Computed Tomography | See Computerised Tomography. |
| Computerised Tomography | A scanning procedure using X-rays and a computer to detect abnormalities of the body's organs. This technique provides cross-sectional images of body organs, which is much clearer than those provided by conventional X-rays. |
| Computerized Axial Tomography | See Computerised Tomography. |
| Condyloma | Viral warts of the anal-genital region. |
| Condylomata | See Genital Warts. |
| Congestive | |
| Conjunctiva | |
| Conjunctivitis | See Conjunctiva. |
| Constipated | See Constipation. |
| Constipation | |
| Contracture | |
| Contractures | See Contracture. |
| Contusion | A bruise; an injury in which the skin is not broken. |
| Contusions | See Contusion. |
| Copper | |
| Cor Pulmonale | |
| Cornea | |
| Coronary Infarction | Sudden lack of blood supply to the heart that results an area of dead cardiac tissue. |
| Corpus Luteum | |
| Corrigent | Modifying or correcting. |
| Corticosteroid | |
| Corticosteroids | See Corticosteroid. |
| Cortisol | |
| Cotinine | |
| Cramp | |
| Cramping | See Cramp. |
| Cramps | See Cramp. |
| Crave | To have a strong desire for; to feel the need for. |
| Craving | See Crave. |
| Cravings | See Crave. |
| C-Reactive Protein | |
| Crohn's | See Crohn's Disease. |
| Crohn's Disease | |
| CRP | See C-Reactive Protein. |
| CT Scan | See Computerised Tomography. |
| Cup | A unit of volume measurement equal to 8 fluid oz, or roughly 250ml. It also equals 1/2 pint, 1/4 quart and 1/16 gallon. |
| Cups | See Cup. |
| Curare | Curare-like effect: Paralysis of skeletal muscle. |
| CVD | Cardiovascular Disease. |
| Cyst | See Cysts. |
| Cysteine | |
| Cystic Acne | See Boil. |
| Cystic Fibrosis | |
| Cystine | |
| Cystitis | |
| Cystorrhea | Mucus in the urine, usually following infection or from chronic congestion of the bladder mucosa. |
| Cysts | |
| Cytokine | See Cytokines. |
| Cytokines | |
| Cytomegalovirus | |
| Cytoplasm | |
| Cytoplasmic | |
| Cytostatic | Characterized by the slowing of movement and accumulation of blood cells. |
| Cytotoxic | |