| monitor | 1. One who admonishes; one who warns of faults, informs of duty, or gives advice and instruction by way of reproof or caution. "You need not be a monitor to the king." (Bacon) 2. Hence, specifically, a pupil selected to look to the school in the absence of the instructor, to notice the absence or faults of the scholars, or to instruct a division or class. 3. <zoology> Any large Old World lizard of the genus Varanus; especially, the Egyptian species (V. Niloticus), which is useful because it devours the eggs and young of the crocodile. It is sometimes five or six feet long. 4. [So called from the name given by Captain Ericson, its designer, to the first ship of the kind] An ironclad war vessel, very low in the water, and having one or more heavily-armored revolving turrets, carrying heavy guns. 5. <machinery> A tool holder, as for a lathe, shaped like a low turret, and capable of being revolved on a vertical pivot so as to bring successively the several tools in holds into proper position for cutting. Monitor top, the raised central portion, or clearstory, of a car roof, having low windows along its sides. Origin: L, fr. Monere. See Monition, and cf. Mentor. Source: Websters Dictionary (01 Mar 1998) |
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| monitor, holter | A technique for long-term, continuous cardiac surveillance. A cassette tape is worn by the patient continuously while carrying out his/her usual activities. The patient simultaneously keeps a diary of palpitations or other symptoms during the recording period. Symptoms of palpitations can later be correlated with the presence or absence of arrhythmias (abnormal heart rhythms) on the holter tape. The recordings can be analyzed by a doctor at a later date. Named for the late american biophysicist norman holter. (12 Dec 1998) |
| monitoring | <investigation> The process of continually checking, observing, recording or testing the operation of some procedure. Monitoring occurs for example during anaesthesia or radiation. (18 Nov 1997) |
| monitoring, ambulatory | The use of electronic equipment to observe or record physiologic processes while the patient undergoes normal daily activities. (12 Dec 1998) |
| monitoring, immunologic | Testing of immune status in the diagnosis and therapy of cancer, immunoproliferative and immunodeficiency disorders, and autoimmune abnormalities. Changes in immune parameters are of special significance before, during and following organ transplantation. Strategies include measurement of tumour antigen and other markers (often by radioimmunoassay), studies of cellular or humoral immunity in cancer aetiology, immunotherapy trials, etc. (12 Dec 1998) |
| monitoring, intraoperative | The constant checking on the state or condition of a patient during the course of a surgical operation (e.g., checking of vital signs). (12 Dec 1998) |
| monitoring, physiologic | The continuous measurement of physiological processes, blood pressure, heart rate, renal output, reflexes, respiration, etc., in a patient or experimental animal; includes pharmacologic monitoring, the measurement of administered drugs or their metabolites in the blood, tissues, or urine. (12 Dec 1998) |
| maestricht monitor | <paleontology> The Mosasaurus Hofmanni. See Mosasaurus. Origin: So called from Maestricht, a town in Holland. Source: Websters Dictionary (01 Mar 1998) |
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| water monitor | <zoology> A very large lizard (Varanaus salvator) native of India. It frequents the borders of streams and swims actively. It becomes five or six feet long. Called also two-banded monitor, and kabaragoya. The name is also applied to other aquatic monitors. Source: Websters Dictionary (01 Mar 1998) |
| waveform monitor | <microscopy> A cathode-ray oscilloscope that can conveniently display the video signal. See: video waveform. (05 Aug 1998) |
| 24-hour cardiac monitor | <apparatus> A recording device, worn by the patient for the purpose of monitoring the hearts rhythm and rate, over a period of 24 hours. (27 Sep 1997) |