| standing crop | The abundance, total weight, or energy content of organisms existing in a specified area at a given time. In relation to plants it usually refers to normal harvesting procedures, unless specified, for the particular plant under consideration and may not necessarily include the entire plant. (09 Oct 1997) |
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| standing plasma test | If plasma is stored at 4캜 upright in a test tube, chylomicrons will float to the top and form a creamy layer. (05 Mar 2000) |
| standing stock | The number of organisms present in an area at a particular time. (09 Oct 1997) |
| standing test | A test for the effect of a hypotensive drug, carried out by the patient: after taking the drug, he stands perfectly still for one minute commencing from the time that the maximal action of the drug should be manifested; if the dose is adequate, the patient should experience a slight hypotensive reaction. (05 Mar 2000) |
| cusp height | The shortest distance between the tip of a cusp and its base plane, the shortest distance between the deepest part of the central fossa of a posterior tooth and a line connecting the points of the cusps of the tooth. Facial height, the linear dimension in the midline from the hairline to the menton. Nasal height, the distance between the nasion and the lower border of the nasal aperture. Orbital height, the distance between the midpoints of the upper and lower margins of the orbit. (05 Mar 2000) |
| height | Vertical measurement. Anterior facial height (AFH), in cephalometrics, the linear measurement from the nasion to the menton. Height of contour, the line encircling a tooth or other structure at its greatest bulge or diameter with respect to a selected path of insertion. (05 Mar 2000) |
| height-length index | The relation of the height to the length of the skull: (height × 100)/length. Synonym: height-length index, length-height index, transversovertical index. (05 Mar 2000) |
| height of contour | See: height of contour. (05 Mar 2000) |
| height vertigo | Dizziness experienced when looking down from a great height or in looking up at a high building or cliff. Synonym: vertical vertigo. (05 Mar 2000) |
| pulse height analyzer | Electronic circuitry that determines the energy of scintillations recorded by a detector, allowing use of a discriminator to select for photons of a specific type. (05 Mar 2000) |
| diameter at breast height | The width of a plant stem (for example, tree trunk) as measured at 4.5 feet above the ground surface. (09 Oct 1997) |
| length-height index | The relation of the height to the length of the skull: (height × 100)/length. Synonym: height-length index, length-height index, transversovertical index. (05 Mar 2000) |