•
Landing Craft Assault, a British landing craft of the Second World War. • LCA (Low Cost Apple), code name for the
Apple IIe •
Light Combat Aircraft program, pursued by India for the development of the HAL Tejas 4th generation fighter jet. •
Liquid Crystal Attenuator •
Lower control arm, component of an automobile suspension •
Luminance-Chrominance-Audio, video signal standard, carrying brightness and color information on separate wires. ==Mathematics==