Schema \Sche"ma\, n.; pl. Schemata, E. Schemas. [G. See Scheme.]

(Kantian Philos.) An outline or image universally applicable to a general conception, under which it is likely to be presented to the mind; as, five dots in a line are a schema of the number five; a preceding and succeeding event are a schema of cause and effect.

Source: Webster's Revised Unabridged Dictionary (1913)