ATONIC

A‐ton″ic (�), a. [[Cf. F. atonique. See Atony.]] 1. 1. (Med.) Characterized by atony, or want of vital energy; as, an atonic disease.
2. 2. (Gram.) Unaccented; as, an atonic syllable.
3. 3. Destitute of tone vocality; surd. Rush.