Principal engineer salary range. The average principal engineer salary is $96893 based on 571 salary records. The typical salary range for those positions with principal engineer in their job title is between $76346 and $117439. The lowest salary in the principal engineer data was $55000.
migraine miÂ·graine (mÄ«'grÄn') n. A severe recurring headache, usually affecting only one side of the head, that is characterized by sharp pain and is often accompanied by nausea, vomiting, and visual disturbances. Also called hemicrania, megrim, sick headache.
Chronic migraine is a distinct and relatively recently defined sub-type of Chronic Daily Headache. The International Headache Society defines chronic migraine as more than fifteen headache days per month over a three month period of which more than eight are migrainous, in the absence of medication over use. Episodic migraine is the other migraine sub-type, which is defined as less than 15 headache days per month.1.