What does LETS stand for?

Large, External Transformation Sensitive - Glycoprotein - Also known as CSP - Cytochemistry

Large, External Transformation-Sensitive Fibronectin - Medicine (PALA)

Launch Equipment Test Set (MCD)

Law Enforcement Teletype - or Teletypewriter Service - Phoenix, AZ

Law Enforcement Teletypewriter System (SAUO)

Leading Edge Tracker System

Learning Experience for Technical Students - NASA

Linear-Energy Transfer Spectrometer - Radiology (KSC)

Linear-Energy Transfer System - Radiology

Live Environment Testing with SAGE (MCD)

Local Entertainment and Trade System (ODA)

Local Exchange Trading Scheme (WDAA)

Low-Energy Telescope System - Geophysics

Lunar Experiment Telemetry System - Aerospace

Letter Rulings