GRADATING

Verb

gradating

present participle of gradate

Source: Wiktionary

GRADATE

Gra"date, v. t. Etym: [See Grade.]

1. To grade or arrange (parts in a whole, colors in painting, etc.), so that they shall harmonize.

2. (Chem.)

Definition: To bring to a certain strength or grade of concentration; as, to gradate a saline solution.

Source: Webster’s Unabridged Dictionary 1913 Edition