1. (a.) Of or pertaining to system; consisting in system; methodical; formed with regular connection and adaptation or subordination Of parts to each other, and to the design Of the whole; as, a systematic arrangement Of plants or animals; a systematic course Of study.

2. (a.) Proceeding according to system, or regular method; as, a systematic writer; systematic benevolence.

3. (a.) Pertaining to the system of the world; cosmical.

4. (a.) Affecting successively the different parts of the system or set of nervous fibers; as, systematic degeneration.