| day residue | Psychoanalytic term for a dream related to an experience of the previous day. (05 Mar 2000) |
|---|---|
| Day, Richard | <person> U.S. Physician, 1813-1892. See: Day's test. (05 Mar 2000) |
| Day, Richard L | <person> U.S. Paediatrician, *1905. See: Riley-Day syndrome. (05 Mar 2000) |
| day sight | Night blindness or difficulty in seeing at night. Symptom of vitamin A deficiency. (27 Sep 1997) |
| day-star | 1. The morning star; the star which ushers in the day. "A dark place, until the day dawn, and the day-star arise in your hearts." (2 Peter i. 19) 2. The sun, as the orb of day. "So sinks the day-star in the ocean bed, And yet anon repairs his drooping head, And tricks his beams, and with new-spangled ore Flames in the forehead of the morning sky." (Milton) Source: Websters Dictionary (01 Mar 1998) |
| three-day fever | Influenza-like febrile viral disease caused by several members of the bunyaviridae family and transmitted mostly by the bloodsucking sandfly phlebotomus papatasii. (12 Dec 1998) |
| three-day measles | <disease, virology> An acute, usually benign, infectious disease caused by a togavirus and most often affecting children and nonimmune young adults, in which the virus enters the respiratory tract via droplet nuclei and spreads to the lymphatic system. It is characterised by a slight cold, sore throat and fever, followed by enlargement of the postauricular, suboccipital and cervical lymph nodes and the appearances of a fine pink rash that begins on the head and spreads to become generalised. Synonym: German measles, rubeola. Origin: L. Rubellus = reddish, ruber = red (17 Dec 1997) |
| fever, five-day | See Fever, trench. (12 Dec 1998) |
| five-day fever | See Fever, trench. (12 Dec 1998) |
| long-day plant | <botany> A plant that requires more than 12 hours of daylight before flowering will occur. (09 Oct 1997) |
| Abbe test plate | <equipment> A long, wedge-shaped coverslip about 0.20 mm thick at one end and 0.10 to 0.12 mm at the other end coated chemically with a silver film on which are ruled horizontal lines. at each variation in thickness of 0.01 mm there are vertical lines. By means of oblique illumination and by focusing on different portions of the plate, it is possible to determine the optimum coverslip thickness for any objective and also, for microscopes with drawtubes, the tube length for best objective performance. The approximate freedom from spherical and chromatic aberrations can also be estimated. Small isolated bits of silver near the edges of the lines form good objects for the star test (05 Aug 1998) |
| acetone test | A test for ketonuria; the suspected urine is shaken up with a few drops of sodium nitroprusside, and strong ammonia water is then gently poured over the mixture; if acetone is present, a magenta ring forms at the line of contact; tablets containing sodium nitroprusside and alkali are now more commonly used. (05 Mar 2000) |
| achievement test | A standardised test used to measure acquired learning, e.g., competence in a specific subject area such as reading or arithmetic, in contrast to an intelligence test which is a useful index of potential ability or learning. (05 Mar 2000) |
| acidified serum test | Lysis of the patient's red cells in acidified fresh serum, specific for paroxysmal nocturnal haemoglobinuria. Synonym: Ham's test. (05 Mar 2000) |
| acid loading test | <nephrology> This is a test used in the diagnosis of renal tubular acidosis. The patient takes ammonium chloride capsules for 3 days to acidify the blood (lower blood pH). A sample of the urine and the blood is then collected and the results are interpreted. (27 Sep 1997) |