Sŷs'tem-ăt'ic or Sŷs'tem-ăt'ic-al, a.
a. [Gr. συστηματικός, Fr. systématique, It. & Sp. sistematico.]
Sense 1. 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.
Now we deal much in essays, and unreasonably despise systematical learning; whereas our fathers had a great value for regularity and system. Watts.
Sense 2. Proceeding according to system or regular method; as, a systematic writer.
Sense 3. Of, or pertaining to, the system of the world; cosmical.
Upon which accounts these ends may be called cosmical, or systematical. Boyle.