a. [f. med.L. concausa (see next) + -AL: cf. CAUSAL.] Pertaining to, or of the nature of, a concause; operating in combination as causes. Also as sb.
165560. Stanley, Hist. Philos. (1701), 512/1. Of these Causes, they hold some to be Continent (or Solitary;) others, Con-causal Con-causal is that which joineth with another Con-causal, towards production of the same Effect. Ibid., III. II. 129. God is principle; the consequent and concausalls are reduced to necessity.