| Sa | the most anterior point of the anterior contour of the sella turcica [point]; saline; Staphylococcus... |
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| Si | the most anterior point on the lower contour of the sella turcica [point]; silicon |
| Sp | the most posterior point on the posterior contour of the sella turcica; species; specific; specimen;... |
| bean-shaped plasma | <radiobiology> A toroidal plasma indented on the inboard side (the side with the donut hole), that results in additional stability to ballooning modes. Moderate indentation may provide access to the second-stability region (high beta). (13 Nov 1997) |
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| bell-shaped crown | A crown of a tooth with an exaggerated occlusogingival contour; human deciduous molars typify the bell-shaped crown. (05 Mar 2000) |
| bristle-shaped | Resembling a bristle in form; as, a bristle-shaped leaf. Source: Websters Dictionary (01 Mar 1998) |
| bullet shaped vertebrae | <radiology> Differential diagnosis: Morquio disease, achondroplasia, Hurler disease (12 Dec 1998) |
| pear-shaped area | A cushioned mass of tissue, frequently pear-shaped, located on the alveolar process of the mandible behind the area of the last natural molar tooth. Synonym: pear-shaped area. (05 Mar 2000) |
| wedge-shaped | 1. Having the shape of a wedge; cuneiform. 2. <botany> Broad and truncate at the summit, and tapering down to the base; as, a wedge-shaped leaf. Source: Websters Dictionary (01 Mar 1998) |
| wedge-shaped fasciculus | The larger lateral subdivision of the posterior funiculus. Synonym: fasciculus cuneatus, Burdach's column, Burdach's fasciculus, Burdach's tract, cuneate funiculus, wedge-shaped fasciculus. (05 Mar 2000) |
| wedge-shaped tubercle | tubercle of cuneate nucleus |
| wheel-shaped | 1. Shaped like a wheel. 2. <botany> Expanding into a flat, circular border at top, with scarcely any tube; as, a wheel-shaped corolla. Source: Websters Dictionary (01 Mar 1998) |
| saddle-shaped | Shaped like a saddle. <botany> Specifically: Bent down at the sides so as to give the upper part a rounded form. <geology> Bent on each side of a mountain or ridge, without being broken at top; said of strata. Source: Websters Dictionary (01 Mar 1998) |
| heart-shaped pelvis | Cordiform pelvis, a pelvis with sacrum projecting forward between the ilia, giving to the brim a heart shape. Synonym: heart-shaped pelvis. (05 Mar 2000) |
| heart-shaped uterus | An incomplete uterus bicornis with a wedge-shaped depression at the fundus. Synonym: heart-shaped uterus, uterus cordiformis. (05 Mar 2000) |
| salver-shaped | <botany> Tubular, with a speading border. See Hypocraterimorphous. Source: Websters Dictionary (01 Mar 1998) |
| saucer-shaped cataract | A common form of senile cataract often confined to a region just within the posterior capsule. Synonym: saucer-shaped cataract. (05 Mar 2000) |
| hook-shaped cataract | Congenital cataract with hook-like figures between the foetal and embryonic nuclei. (05 Mar 2000) |