Atonic

Webster's Dictionary of the English Language

·noun A word that has no accent.

II. Atonic ·adj Destitute of tone vocality; surd.

III. Atonic ·adj Unaccented; as, an atonic syllable.

IV. Atonic ·noun A remedy capable of allaying organic excitement or irritation.

V. Atonic ·adj Characterized by atony, or want of vital energy; as, an atonic disease.

VI. Atonic ·noun An element of speech entirely destitute of vocality, or produced by the breath alone; a nonvocal or surd consonant; a breathing.