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Media mail


a class of US postage designated for sending books, recordings, and computer media

Media mail was a USPS term as of Jan. 7, 2001; formerly called Book Rate.


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  • Medial vastus muscle

    medial vastus muscle medial vas·tus muscle (vās’təs) n. A muscle with origin from the shaft of the femur, with insertion into the tibial tuberosity, with nerve supply from the femoral nerve, and whose action extends the leg. Also called medial great muscle.

  • Median

    [mee-dee-uh n] /ˈmi di ən/ noun 1. Arithmetic, Statistics. the middle number in a given sequence of numbers, taken as the average of the two middle numbers when the sequence has an even number of numbers: 4 is the median of 1, 3, 4, 8, 9. 2. Geometry. a straight line from a vertex of […]

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