Wiktionary(0.00 / 0 votes)Rate this definition: snow shower(Noun) A snow system leading to an accumulation of snow between 1 to 3 inches. A snow shower brings more snow than a flurry, but less than a snow storm or a blizzard. Numerology
Network interface device. Not to be confused with Network interface controller. In telecommunications, a network interface device (NID; also known by several other names) is a device that serves as the demarcation point between the carrier's local loop and the customer's premises wiring.
National coverage determination. A national coverage determination (NCD) is a United States' nationwide determination of whether Medicare will pay for an item or service. Medicare coverage is limited to items and services that are considered reasonable and necessary for the diagnosis or treatment of an illness or injury (and within the scope of a Medicare benefit category).