3) In hardware design, a prototype is a hand-built model that represents a manufactured (easily replicable) product sufficiently for designers to visualize and test the design. The word prototype comes from the Latin words proto, meaning original, and typus, meaning form or model.
In chemistry, a salt is an ionic compound which is made up of two groups of oppositely charged ions. The ion with a positive charge is called a cation, and the one with a negative charge is called an anion.
noun, plural: salts. (1) A dietary mineral comprised of sodium and chloride, used in food seasoning, preserving meat, etc. (2) The crystallized product of evaporation, especially of sea water. (3) The neutral ionic compound formed by chemical combination of acid and base, or through neutralization. adjective. (1) Of, relating to, tasting, or containing salt. (2) Salty; saline. (3) Growing to saline environment, as salt grass.