represented in simplified or symbolic type
- drawing of an electrical or technical system
- Of or pertaining to a scheme or a schema
- Of or with respect to a scheme or a schema.
"pertaining to systems," 1701, from Latin stem of scheme (letter.) + -ic. Noun definition "diagram" is first attested 1929. Related: Schematical (1670s).
Both ctenidia, right and left, are invariably present, the axis of each taking origin from the side of the body as in the schematic archi-Mollusc (see fig.