from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Not accented: an atonic syllable.
- adj. Pathology Relating to, caused by, or exhibiting lack of muscle tone.
- n. A word, syllable, or sound that is unaccented.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Referring to a syllable or sound that is spoken without accent or stress.
- adj. Lacking muscle tone.
from the GNU version of the Collaborative International Dictionary of English
- adj. Characterized by atony, or lack of vital energy.
- adj. Unaccented.
- adj. Destitute of tone vocality; surd.
- n. A word that has no accent.
- n. An element of speech entirely destitute of vocality, or produced by the breath alone; a nonvocal or surd consonant; a breathing.
- n. A remedy capable of allaying organic excitement or irritation.
from The Century Dictionary and Cyclopedia
- In pathology, characterized by atony, or want of tone or power: as, an atonic disease.
- In philology: Unaccented. Produced by the breath alone; surd.
- n. In medicine, a drug capable of allaying organic excitement or irritation.
- n. In philology: A word or syllable that has no accent.
- n. An elementary sound produced by the breath; a surd consonant; a breathing.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. characterized by a lack of tonus
- adj. used of syllables
From Greek atonos; see atony.(American Heritage® Dictionary of the English Language, Fourth Edition)