1. To lay or place; to put or adjust (one thing to another); with to; as, to apply the hand to the breast; to apply medicaments to a diseased part of the body. "He said, and the sword his throat applied." (Dryden)

2. To put to use; to use or employ for a particular purpose, or in a particular case; to appropriate; to devote; as, to apply money to the payment of a debt.

3. To make use of, declare, or pronounce, as suitable, fitting, or relative; as, to apply the testimony to the case; to apply an epithet to a person. "Yet God at last To Satan, first in sin, his doom applied." (Milton)

4. To fix closely; to engage and employ diligently, or with attention; to attach; to incline. "Apply thine heart unto instruction." (Prov. Xxiii. 12)

5. To direct or address. "Sacred vows . . . Applied to grisly Pluto." (Pope)

6. To betake; to address; to refer; used reflexively. "I applied myself to him for help." (Johnson)

7. To busy; to keep at work; to ply. "She was skillful in applying his "humors."" (Sir P. Sidney)

8. To visit. "And he applied each place so fast." (Chapman) Applied chemistry. See Chemistry. Applied mathematics. See Mathematics.

Origin: OF. Aplier, F. Appliquer, fr. L. Applicare to join, fix, or attach to; ad + plicare to fold, to twist together. See Applicant, Ply.

(01 Mar 1998)