The act of making improvement.
Tending to cause improvement; affording means or occasion of improvement; that may be used to advantage.noun
In metallurgy, an operation for removing a portion of the impurities from argentiferous lead by exposing the molten metal to the oxidizing influence of the air.adjective
Tending to improve, beneficial; growing better.adjective
an extended lease to induce the tenant to make improvements on the premises.adjective
Present participle of
getting higher or more vigorous