| sagittal plane | <dentistry> The longitudinal vertical plane that divides the mouth into two halves (left and right.) (08 Jan 1998) |
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| sagittal section | A cross section obtained by slicing, actually or through imaging techniques, the body or any part of the body, or any anatomic structure in the sagittal plane, i.e., in a vertical plane parallels to the median plane. Since actual sectioning in the sagittal plane results in a right and a left portion, an anatomical sagittal section may be a two-dimensional view of the cut surface on the medial aspect of either portion. Synonym: parasagittal section. (05 Mar 2000) |
| sagittal split mandibular osteotomy | An intraoral surgical procedure for correction of retrognathism, apertognathia, and prognathism; the mandibular rami and posterior body are sectioned in the sagittal plane. (05 Mar 2000) |
| sagittal sulcus | The groove in the midline of the inner table of the calvaria lodging the superior sagittal sinus. Synonym: sulcus sinus sagittalis superioris, sagittal groove, sagittal sulcus, superior longitudinal sulcus. (05 Mar 2000) |
| sagittal suture | Line of union between the two parietal bones. Synonym: sutura sagittalis, interparietal suture, sutura interparietalis. (05 Mar 2000) |
| sagittal synostosis | <anatomy> A deformed condition of the skull, in which the vault is narrow, clongated, and more or less boat-shaped. Origin: Gr. A boat + head. Source: Websters Dictionary (01 Mar 1998) |
| sagittalis | Synonym: sagittal. Origin: L. (05 Mar 2000) |
| sagittarius | <astronomy> The ninth of the twelve signs of the zodiac, which the sun enters about November 22, marked thus [<sagittarius/] in almanacs; the Archer. A zodiacal constellation, represented on maps and globes as a centaur shooting an arrow. Origin: L, literally, an archer, fr. Sagittarius belonging to an arrow, fr. Sagitta an arrow. Source: Websters Dictionary (01 Mar 1998) |
| sagittary | 1. A centaur; a fabulous being, half man, half horse, armed with a bow and quiver. 2. The Arsenal in Venice; so called from having a figure of an archer over the door. See: Sagittarius. Source: Websters Dictionary (01 Mar 1998) |
| sagittate | Shaped like an arrow-head. (09 Oct 1997) |
| sagittocyst | <zoology> A defensive cell containing a minute rodlike structure which may be expelled. Such cells are found in certain Turbellaria. See: Sagitta, and Cyst. Source: Websters Dictionary (01 Mar 1998) |
| sago | A dry granulated starch imported from the East Indies, much used for making puddings and as an article of diet for the sick; also, as starch, for stiffening textile fabrics. It is prepared from the stems of several East Indian and Malayan palm trees, but chiefly from the Metroxylon Sagu; also from several cycadaceous plants (Cycas revoluta, Zamia integrifolia, atc). Portland sago, a kind of sago prepared from the corms of the cuckoopint (Arum maculatum). Sago palm. <botany> A morbid condition of the spleen, produced by amyloid degeneration of the organ, in which a cross-section shows scattered gray translucent bodies looking like grains of sago. Origin: Malay. Sagu. Source: Websters Dictionary (01 Mar 1998) |
| sago spleen | Amyloidosis in the spleen affecting chiefly the malpighian bodies. (05 Mar 2000) |
| sagoin | <zoology> A marmoset. Synonym: sagouin. Origin: F. Sagouin(formed from the native South American name). Source: Websters Dictionary (01 Mar 1998) |
| saguinus | A genus of callitrichinae consisting of 22 species and found in panama as well as south america. Species seen most frequently in the literature are s. Oedipus (cotton-top marmoset), s. Nigricollis, and s. Fusicollis. (12 Dec 1998) |