sal

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Salt.

from The Century Dictionary.

• noun Salt: a word much used by the older chemists and in pharmacy.
• noun A large gregarious tree, Shorea robusta, natural order Dipterocarpeæ, of northern India.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Bot.) An East Indian timber tree (Shorea robusta), much used for building purposes. It is of a light brown color, close-grained, heavy, and durable.
• noun (Chem. & Pharm.) Salt.
• noun (Old Chem.) an impure potassium carbonate obtained from the ashes of wormwood (Artemisia Absinthium).
• noun (Old Chem.) salt of sorrel.
• noun (Old Chem.) See Alembroth.
• noun (Chem.) ammonium chloride, NH4Cl, a white crystalline volatile substance having a sharp salty taste, obtained from gas works, from nitrogenous matter, etc. It is largely employed as a source of ammonia, as a reagent, and as an expectorant in bronchitis. So called because originally made from the soot from camel's dung at the temple of Jupiter Ammon in Africa. Called also muriate of ammonia.
• noun (Old Med. Chem.) Epsom salts.
• noun (Old Chem.) common salt, or sodium chloride.
• noun (Old Chem.) See Sal ammoniac above.
• noun (Old Chem.) potassium sulphate; -- so called because erroneously supposed to be composed of two salts, one acid and one alkaline.
• noun (Old Med. Chem.) potassium acetate.
• noun (Old Chem.) acid potassium sulphate.
• noun (Old Min.) common salt occuring native.
• noun (Old Chem.) salt tin, or stannic chloride; -- the alchemical name of tin being Jove.
• noun (Old Chem.) green vitriol, or ferrous sulphate; -- the alchemical name of iron being Mars.
• noun (Old Chem.) See Microcosmic salt, under Microcosmic.
• noun (Old Chem.) sugar of lead.
• noun (Old Chem.) See Prunella salt, under 1st Prunella.
• noun (Old Chem.) sugar of lead, or lead acetate; -- the alchemical name of lead being Saturn.
• noun (Old Chem.) sedative salt, or boric acid.
• noun (Chem.) Rochelle salt.
• noun (Chem.) sodium carbonate. See under Sodium.
• noun (Old Chem.) white vitriol; zinc sulphate.
• noun (Chem.) Spirits of ammonia.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun chemistry, obsolete salt
• noun Shorea robusta, a dipterocarpaceous tree.