A glass with the general formula Na2O.xSiO2, x equals 3 or 5; used as a cement or as a protective coating and to preserve eggs; SYN. water glass, sodium silicate.

An acrobatic feat of rolling or turning end over end.

1. A glass with a flat bottom but no handle or stem; originally had a round bottom.
2. A gymnast who performs rolls and somersaults and twists etc.
3. A movable obstruction in a lock that must be adjusted to given position (as by a key) before the bolt can be thrown.

Common name for sodium metasilicate (Na2SiO3). It is a colorless, jellylike substance that dissolves readily in water to give a solution used for preserving eggs and fireproofing porous materials such as cloth, paper, and wood. It is also used as an adhesive for paper and cardboard and in the manufacture of soap and silica gel, a substance that absorbs moisture. SYN. water-glass + prikaži više