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.
Asker's rating. 1  Definition Of A Salt. 2  A salt is an ionic compound formed as a product of a neutralisation reaction where a metal or electropositive radical replaces the hydrogen in an acid. 3  A compound formed by replacing hydrogen in an acid by a metal (or a radical that acts like a metal)