Abbreviation for station message-detail recording.

In video displays, a localized distortion over a sub-region of the image, characterized by reduced sharpness of edges and spatial detail. For example, the portrayal of a fast moving object may exhibit smearing. [T1.80
1. 02-1996]

Storage Management Specification

Acronym for synchronized multimedia integration language. A protocol for downloading digitized streams or audio/video data files in the absence of a browser.
Note: Pronounced "smile. "

Standard Markup Language

Idealized surfaces, such as water surfaces or very level terrain, having radio horizons that are not formed by prominent ridges or mountains but are determined solely as a function of antenna height above ground and the effective Earth radius.

Society of Motion Picture and Television Engineers

Short Message Service Center

Abbreviation for simple mail transfer protocol. A protocol used to transfer e-mail between or among servers.
Note: End-users then employ Post Office Protocol to transfer messages to individual terminals.

Abbreviation for systems network architecture. A proprietary communications architecture.