Picture of a brown recluse spider. Note the violin pattern on the cephalothorax and light-colored hairless abdomen. Picture of a brown recluse spider. Picture of a brown recluse spider head close-up. Generalized symptoms of bites from black widow and brown recluse spiders may include: 1  fever,  nausea,
Standard Mileage Rate Law and Legal Definition. The standard mileage rate (SMR), also known as mileage per diem, is the amount per mile that the Internal Revenue Service (IRS) allows small businesses and self-employed persons to use to calculate their vehicle expenses for tax deduction purposes.
Wiktionary (0.00 / 0 votes) Rate this definition: mile (Noun). A unit of measure (length or distance) equal to 5,280 feet (8 furlongs) in the U.S.Customary/Imperial system of measurements. One mile is equal to 1.609344 km. mile (Noun). A Roman unit of measure equal to 1000 (double) steps (mille passus or mille passuum) or 5000 Roman feet (approx. 1480m).