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atonic
a·ton·ic [ ay tónnik ]


adjective 
Definition:
 
1. unstressed: describes a syllable or sound that is not accented or stressed
2. lacking muscle tone: relating to, caused by, or showing a lack of muscle tone
[Mid-18th century. <atony, after tonic]

at·o·nic·i·ty [ àytə níssətee, àytō níssətee, àtt'n íssətee ] noun
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