| siderosilicosis | Silicosis due to inhalation of dust containing iron and silica. Synonym: silicosiderosis. Origin: sidero-+ silicosis (05 Mar 2000) |
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| siderosis | <medicine> A sort of pneumonia occuring in iron workers, produced by the inhalation of particles of iron. Origin: NL, fr. Gr. Iron. Source: Websters Dictionary (01 Mar 1998) |
| siderostat | <astronomy> An apparatus consisting essentially of a mirror moved by clockwork so as to throw the rays of the sun or a star in a fixed direction; a more general term for heliostat. Origin: L. Sidus, sideris, a star + Gr. Standing, fixed, fr. To place. Source: Websters Dictionary (01 Mar 1998) |
| siderotic | Related to siderosis; pigmented by iron or containing an excess of iron. (05 Mar 2000) |
| siderotic cataract | A cataract resulting from deposition of iron from an iron-containing intraocular foreign body. (05 Mar 2000) |
| siderotic nodules | Small firm spheroidal or irregular foci that are yellow-brown, brown, or rustlike in colour, occurring chiefly in the spleen in such conditions as congestive splenomegaly and sickle cell disease, and consisting of relatively dense fibrous tissue or collagenous fibres impregnated with iron pigment and calcium salts; probably result from organization and scarring of sites where small perivascular haemorrhages occurred. Synonym: Gamna-Gandy nodules, Gandy-Gamna bodies, siderotic nodules. (05 Mar 2000) |
| sideroxylon | <botany> A genus of tropical sapotaceous trees noted for their very hard wood; ironwood. Origin: NL, fr. Gr. Iron + wood. Source: Websters Dictionary (01 Mar 1998) |