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chronic

chron·ic [ krónnik ]


adjective 
Definition:
 
1. long-lasting: describes an illness or medical condition that lasts over a long period and sometimes causes a long-term change in the body

2. with long-term illness: having a particular long-term illness or condition
a chronic asthmatic

3. always present: always present or recurring

4. habitual: repeatedly doing something or behaving compulsively
a chronic liar

[15th century. Via French< Greek khronikos "of time" < khronos "time"]

chron·i·cal·ly adverb
chro·nic·i·ty [ krə níssətee ] noun
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