caustic soda noun

Sodium hydroxide, used in making soap

caustic surface noun (physics)

A caustic-shaped surface, the envelope of rays of light reflected or refracted by a curved surface

common caustic

1. Potash
2. Also silver nitrate

lunar caustic

Silver nitrate in sticks for surgical use

soda /sōˈdə/

1. Any of a number of common sodium compounds, incl sodium oxide (Na₂O), sodium hydroxide (caustic soda), sodium carbonate (washing-soda), and sodium bicarbonate (baking soda)
2. Soda water (informal)
3. A fizzy drink made of soda water with flavouring, ice-cream, etc (N American)
4. Any fizzy soft drink (N American)

Of or containing soda or sodium

sodaic /sō-dāˈik/ adjective

Containing or relating to soda

soˈdalite noun

A cubic mineral, a complex feldspathoid consisting of sodium aluminium silicate and sodium chloride in crystalline form, occurring in igneous rocks

soˈdamide /-mīd/ noun

A compound (NaNH₂) formed when ammonia gas is passed over hot sodium (also called sodium amide)

soˈdic adjective

soda ash noun

Anhydrous sodium carbonate in powdered form for commercial use

soda bread noun

Bread leavened with baking soda

soda cracker noun (N American)

A crisp biscuit leavened with baking soda

soda fountain noun (N American)

1. An apparatus for supplying soda water
2. A shop or counter where sodas, ice-cream, etc are served

soda jerk or soda jerker noun (N Am sl)

A person who serves at a soda fountain

soˈda-lake noun

A lake containing and depositing a large amount of sodium salts

soda lime noun

A mixture of caustic soda and quicklime

soda nitre noun

Sodium nitrate (also called Chile saltpetre, nitratine)

soda pop noun (US)

A carbonated soft drink of any flavour

soda scone noun

A scone made with baking soda

soˈda-siphon noun

A siphon which dispenses soda water

soda water noun

Water charged with carbon dioxide