| three-flowered | <botany> Bearing three flowers together, or only three flowers. Source: Websters Dictionary (01 Mar 1998) |
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| three-glass test | The bladder is emptied by passing urine into a series of 3-ounce test tubes, and the contents of the first and the last are examined; the first tube contains the washings from the anterior urethra, the second, material from the bladder, and the last, material from the posterior urethra, prostate, and seminal vesicles. Synonym: Valentine's test. (05 Mar 2000) |
| three-leafed | <botany> Producing three leaves; as, three-leaved nightshade. Consisting of three distinct leaflets; having the leaflets arranged in threes. Three-leaved nightshade. See Trillium. Source: Websters Dictionary (01 Mar 1998) |
| three-leaved | <botany> Producing three leaves; as, three-leaved nightshade. Consisting of three distinct leaflets; having the leaflets arranged in threes. Three-leaved nightshade. See Trillium. Source: Websters Dictionary (01 Mar 1998) |
| three-lobed | Having three lobes. <botany> Three-lobed leaf, a leaf divided into three parts, the sinuses extending not more than half way to the middle, and either the parts of the sinuses being rounded. Source: Websters Dictionary (01 Mar 1998) |
| three-nerved | Having three nerves. <botany> Three-nerved leaf, a leaf having three distinct and prominent ribs, or nerves, extending from the base. Source: Websters Dictionary (01 Mar 1998) |
| three-parted | Divided into, or consisting of, three parts; tripartite. <botany> Three-parted leaf, a leaf divided into three parts down to the base, but not entirely separate. Source: Websters Dictionary (01 Mar 1998) |
| three-pointed | <botany> Having three acute or setigerous points; tricuspidate. Source: Websters Dictionary (01 Mar 1998) |
| three-sided | Having three sides, especially three plane sides; as, a three-sided stem, leaf, petiole, peduncle, scape, or pericarp. Source: Websters Dictionary (01 Mar 1998) |
| echocardiography, three-dimensional | Echocardiography amplified by the addition of depth to the conventional two-dimensional echocardiography visualizing only the length and width of the heart. Three-dimensional ultrasound imaging was first described in 1961 but its application to echocardiography did not take place until 1974. (mayo clin proc 1993;68:221-40) (12 Dec 1998) |
| frostberg inverted-three sign | <radiology> Medial retraction of 2nd portion of duodenum, pancreatic carcinoma (less than10% of carcinoma's), acute pancreatitis, postbulbar ulcer disease (12 Dec 1998) |
| auditory field | The space included within the limits of hearing of a definite sound, as of a tuning fork. (05 Mar 2000) |
| bright field illumination | <microscopy> The method of lighting the specimen with a solid cone of rays. Transmitted bright field illumination is performed by a substage condenser. Reflected bright field illumination is performed by a vertical illuminator. Compare: dark field illumination (05 Aug 1998) |
| bright field imaging | <microscopy> An imaging mode in a transmission electron microscopy that uses only unscattered Electrons to form the image. Contrast in such an image is due entirely to mass-thickness variations in amorphous samples, and may include diffraction contrast in crystalline samples. (05 Aug 1998) |
| bright field microscopy | <technique> Optical microscopy, in which absorption to a great extent and diffraction to a minor extent give rise to the image, as opposed to phase contrast or interference methods of microscopy. (18 Nov 1997) |