a. [f. Gr. ἐκτεν-ής strained, f. ἐκτείνειν to stretch out + -IC.] Epithet applied to the phenomena, otherwise called ‘mesmeric’ or hypnotic, considered as produced by a state of strained attention.
1882. Ch. Times, 17 Feb., 104. Manifestations … psychic, biological, odylic, ectenic.
