What does ULN stand for?

Ulan Bator - Mongolia - Airport symbol (OAG)

Ulnar (SAUS)

United Lincoln Resources, Inc. - Vancouver Stock Exchange symbol

Unit Line Number (DOMA)

Universal Link Negotiation (SAUS)

University of Lowell, North Campus, Lowell, MA - OCLC symbol (OCLC)

Unlaunchable (IAA)

Unserdeutsch - Language code (ETLW)

Upper Limits of Normal - Medicine