| BPS | beats per second; Behavioral Pharmacological Society; biophysical profile score; bits per second; bo... |
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| C2 | second cervical nerve; second cervical vertebra; second component of complement |
| LI, LII, | LIII first, second, third stage of syphilis |
| A2 P2 | aortic second sound; pulmonary second sound |
| cps | counts per second; cycles per second |
| placental stage of labour | The part of labour from the birth of the baby until the placenta (afterbirth) and foetal membranes are delivered. Also called the third stage of labour. (12 Dec 1998) |
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| preconceptual stage | In psychology, the stage of development in an infant's life, prior to actual conceptual thinking, in which sensorimotor activity predominates. (05 Mar 2000) |
| prodromal stage | incubation period |
| specimen stage | <microscopy> The part of the microscope which supports the specimen holder and specimen in the microscope, and can be moved in a plane perpendicular to the optical axis from outside the column. (05 Aug 1998) |
| stage | <oncology> The extent to which cancer has spread from its original site to other parts of the body. Usually denoted by a number from Stage 1 (least severe) to Stage 4 (more advanced). Different lymphoma types have different criteria for staging. (12 May 1997) |
| stage mechanical | <microscopy> A small fixture, either built into the light microscope stage or attached separately, it holds the specimen slide and has two horizontal screw adjustments at right angles to each other. The screw motions permit the specimen to be moved as desired. The quantitative type has vermer scales for reading the amount of displacement to 0.1 mm. This stage is sometimes called the traversing stage. (05 Aug 1998) |
| stage micrometre | <microscopy> A graduated scale used as a standard on the stage of a light microscope for calibrating an eyepiece micrometre, also for determining the magnification of a set-up in photomicrography, etc. (05 Aug 1998) |
| stage of dilatation | The part of labour when the cervix dilates fully (to 10 centimeters). Also called the first stage of labour. (12 Dec 1998) |
| stage of expulsion | See: Second stage of labour. (12 Dec 1998) |
| stage of invasion | incubation period |
| defervescent stage | Falling of an elevated temperature; abatement of fever. Origin: L. De-fervesco, to cease boiling, fr. De-neg. + fervesco, to begin to boil (05 Mar 2000) |
| imperfect stage | A mycological term used to describe the asexual life cycle phase of a fungus. See: anamorph. (05 Mar 2000) |
| incubative stage | <microbiology> The time from the moment of inoculation (exposure) to the development of the clinical manifestations of a particular infectious disease. (13 Nov 1997) |
| intuitive stage | In psychology, a stage of development, usually occurring between 4 and 7 years of age, in which a child's thought processes are determined by the most prominent aspects of the stimuli to which he or she is exposed, rather than by some form of logical thought. (05 Mar 2000) |
| oral stage | The earliest of the stages of infantile psychosexual development, lasting from birth to 12 months or longer. (12 Dec 1998) |