LAHB (left anterior hemiblock)

LAIV (live attenuated influenza vaccine)

LAM (lymphangioleiomyomatosis)

LAM (lactation amenorrhea method)

LAO (left anterior oblique)

lap (laparoscop(y/ic))

LAP (left atrial pressure)

LAP (leukocyte alkaline phosphatase)

laryngol (laryngological)

LASER (light amplification by stimulated emission of radiation)