What does HALO stand for?

HA-LO - NASDAQ symbol (SAG)

HA-LO Industries - NASDAQ symbol

Handling of Alarms with Logic - Nuclear reactors

Helping and Loving Orphans (EARSL)

High-Altitude Large Optics - Air Force (MCD)

High Altitude Learjet Observatory (ACAE)

High-Altitude Learjet Observatory (SAUS)

High Altitude Long Operation - Airplane

High Altitude Low Observable (SAUS)

High Altitude/Low Opening

High-Altitude, Low-Opening Parachute Jump

High Altituds (SAUS)

High Arcal Learning Objectives (AIE)

Hongkong Automated Library Operations (SAUS)

Hours After Lights On - Day

Hughes Automated Lunar Observer - NASA