Misc: 82% of workers on the panama canal suffered from----------?

Questions

what term was defined as "far away from the ordinary"?

Solidified milk fat, especially cows milk, used principally as a food item?

South of Tucson, Arizona, most of the road signs are in what system?

Speaking of underwear, what does bvd stand for?

Speech disorder characterized by involuntary hesitations & rapid repetitions of speech elements (speech & speech disorders)?