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Undiscoverable to sight. Hidden in their own sightproof bush. Lowell.

Containing, or composed of, silicon and fluorine; especially, denoting the compounds called silicofluorides. Silicofluoric acid (Chem.), a compound of hydrofluoric acid and silicon fluoride, known only in watery solution. It is produced by the action of silicon fluoride on water, and is regarded as an acid, H2SiF6, and…

A fluosilicate; a salt of silicofluoric acid.

A short candle end used for igniting a fuse. Raymond.

at, usually with a cushioned bottom, back, and ends; - - much used as a comfortable piece of furniture. Let fall the curtains, wheel the sofa round. Cowper. Sofa bed, a sofa so contrived that it may be extended to form a bed; -- called also sofa bedstead.

The under side of the subordinate parts and members of buildings, such as staircases, entablatures, archways, cornices, or the like. See Illust. of Lintel.

Same as Sufi.

Same as Sufism.

irm in resisting; impressible; yielding; also, malleable; -- opposed to Ant: hard; as, a soft bed; a soft peach; soft earth; soft wood or metal.

Steel low in carbon; mild steel; ingot iron.

Having the fin rays cartilaginous or flexible; without spines; -- said of certain fishes.

Weak in intellect.

Having softness or tenderness of heart; susceptible of pity or other kindly affection; gentle; meek. -- Soft"-heart`ed*ness, n.

Having a soft or fragile shell. Soft-shell clam (Zoöl.), the long clam. See Mya. -- Soft-shelled crab. (Zoöl.) See the Note under Crab, 1. -- Soft-shelled turtle. (Zoöl.) Same as Soft tortoise, under Soft.

Speaking softly; having a mild or gentle voice; hence, mild; affable.

Any one attached to a Mohammedan mosque, esp. a student of the higher branches of theology in a mosque school. [Written also sophta.]

To make soft or more soft. Specifically: --

One who, or that which, softens. [Written also, less properly, softner.]

from Soften, v. Softening of the brain, or Cerebral softening (Med.), a localized softening of the brain substance, due to hemorrhage or inflammation. Three varieties, distinguished by their color and representing different stages of the morbid process, are known respectively as red, yellow, and white, softening.…

Somewhat soft. De Witt Clinton.