| LF | labile factor; lactoferrin; laryngofissure; Lassa fever; latex fixation; left foot; left forearm; le... |
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| LFD | lactose-free diet; large for date [fetus]; late fetal death; lateral facial dysplasia; least fatal d... |
| LFT | latex fixation test; latex flocculation test; left fronto-transverse [fetal position]; liver functio... |
| AHS | Academy of Health Sciences; African horse sickness; alveolar hypoventilation syndrome; American Hear... |
| ASG | advanced cell group; American Society for Genetics; Army Surgeon General; aspermiogenesis |
| surgeon | <specialist> A medically qualified doctor who has specialised in the removal of organs, masses, tumours, the repair of ruptures, the diversion of channels etc using the knife. Traditionally in old England this was left to unqualified barbers and presumably because of inverted snobbery, the modern day medically qualified surgeons may prefer to be addressed as Mr or Miss instead of Dr. Surgeons are generally highly thought of and even worshipped because the results of their work are generally easily visible (tangible). (16 Dec 1997) |
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| surgeon general | The chief medical officer in the U.S. Army, Navy, Air Force, or Public Health Service. In some foreign military services any member of the medical corps who has the rank of general, not necessarily the chief medical officer. (05 Mar 2000) |
| surgeon's knot | The first loop of the knot has two throws rather than a single throw. The second loop has only one throw and that is placed in a square knot fashion leaving the free ends in the same plane as the first loop. (05 Mar 2000) |
| dental surgeon | A general practitioner of dentistry; a dentist with the D.D.S. Or D.M.D. Degree. (05 Mar 2000) |
| oral surgeon | <specialist> A physician specialist expert in the surgical treatment of the jaw, face, teeth and associated structures. (11 Jan 1998) |
| orthopaedic surgeon | <specialist> A medically qualified specialist in surgery who has subspecialised in the surgery of bones. Bone cancers are best treated by a TEAM of doctors which includes the orthopaedic surgeon, the medical and radiation oncologists, the radiologist and the pathologist. This has shown to give superior results in centres of excellence, but sadly, in many places, only fragmentary contribution is invited. (16 Dec 1997) |
| thoracic surgeon | <specialist> A physician specialist expert in the surgical treatment of diseases of the chest, heart and lungs. (27 Sep 1997) |
| back pain, low | Symptoms in the low back can relate to the bony lumbar spine, discs between the vertebrae, ligaments around the spine and discs, spinal cord and nerves, muscles of the low back, internal organs of the pelvis and abdomen, and the skin covering the lumbar area. The low back, or lumbar area, functions in structural support, movement, and protection of certain body tissue. (12 Dec 1998) |
| blood sugar, low | The sugar here is glucose. Low blood glucose constitutes hypoglycaemia. Hypoglycaemia is only significant when it is associated with symptoms. It has many causes including drugs, liver disease, surgical absence of the stomach, pre-diabetes, and rare tumours that release excess insulin. (12 Dec 1998) |
| cardiac output, low | A state of subnormal or depressed cardiac output, usually seen in patients with heart failure secondary to coronary artery, hypertensive, primary myocardial, valvular, or pericardial disease. (12 Dec 1998) |
| very low density lipoprotein | <biochemistry> A lipoprotein substances (combination of a fat and a protein) which acts as a carrier for cholesterol and fats (particularly triglycerides) in the bloodstream. Elevations in very low density lipoprotein in the bloodstream are associated with an increased risk of atherosclerosis and coronary artery disease. Acronym: VLDL (18 Nov 1997) |
| Castellani-Low sign | <clinical sign> A fine tremor of the tongue observed in sleeping sickness. (05 Mar 2000) |
| mean lower low water | <marine biology> The average height of the lower low waters over a 19-year period. For shorter periods of observations, corrections are applied to eliminate known variations and reduce the result to the equivalent of a mean 19-year value. (09 Oct 1997) |
| mean low water | <marine biology> The average height of the low waters over a 19-year period. For shorter periods of observations, corrections are applied to eliminate known variations and reduce the result to the equivalent of a mean 19-year value. All low-water heights are included in the average where the type of tide is either semidiurnal or mixed. Only the lower low-water heights are included in the average where the type of tide is diurnal. So determined, mean low water in the latter case is the same as mean lower low water. (09 Oct 1997) |
| placenta, low | Location of the placenta in the lower part of the uterus (womb) so that the placenta partially or completely covers the cervix. Also known as a placenta previa. (12 Dec 1998) |