What does HL stand for?

Das Heilige Land (BJA)

Hairline (DAVI)

Hairy Leukemia (MELL)

Half-Leather (SAUS)

Half Length - Photography (DGA)

Half-Life - of radioactive elements

Half Line - Illustration (DGA)

Hallux Limitus - Podiatry (DAVI)

HALON - Halogenated Hydrocarbon System - NFPA pre-fire planning symbol (NFPA)

Haloperidol (DAVI)

Haltlepool (SAUS)

Handelslehranstalt (SAUS)

Hand Lantern (AAG)

Hansestadt Luebeck - German license plate city code

Hard Labor

Hardline (MCD)

Harelip

Hariana Lancers - British military (DMA)

Harwell Laboratory (SAUS)

Haul (MSA)

Hawser Laid

Hawthorn-Leslie - Indian Railway - Newcastle-upon-Tyne - UK (TIR)

Hazardous Liquid (SAUS)

Header Label - Computer science (IAA)

Headlamp - Automotive engineering

Headlight (SAUS)

Head Linesman - Football

Headmaster-Lieutenant - Navy - British

Health Language (IID)

Heap Leaching (SAUS)

Hearing Level

Hearing Loss

Heart and Lungs (SAUS)

Heavily Loaded (SAUS)

Heavy Lift

Heavy Loaded (SAUS)

Heavy Loading (IAA)

Hebrew Leader (BJA)

Hebrew Letters (BJA)

Hebrew Literature (BJA)

Hecla Mining Co. - NYSE symbol (SPSG)

Hectoliter (GPO)

Heel Line (MSA)

Height-Length

Height Loss - Aviation (DA)

Heilig - Holy, Saint - German

Heir-at-Law

Helium Level

Hell - Telegraphy (PCTE)

Heparin Lock - Pharmacology (DAVI)

Heptagonal League (PSS)

Herpetologists' League (EA)

Hickman Line - Cardiology (DAVI)

Hidalgo - NCIC Mexican state code (NCIC)

Highland Light Infantry (SAUO)

High Latitude (ARMP)

High Level

Highline (MSA)

High Load Move - Electric utility company

Highway Luxury - Tire design

Hill

Hinge Line - Technical drawings

Histiocytic Lymphoma - Oncology

Histocompatibility Locus - Immunology

Hittite Laws (BJA)

Hoc Loco - In This Place - Latin

Hodges-Lehmann Estimator - Statistics

Hodgkin's Lymphoma - Medicine

Holds List - Travel industry (TVEL)

Holiday Airlines (MHDW)

Home Lines - Steamship (MHDW)

Home Loss

Homestead Lease (SAUS)

Honors List (ADA)

Hop Level (SAUS)

Horizontal Landing (KSC)

Horizontal Length (SAUS)

Horizontal Line

Hose-Layer (WDAA)

Host Language

Hot Line - Alert system (AAG)

House of Laity (SAUS)

House of Lords - British

House of Lords Cases (Clark) - England - A publication (DLA)

Howard League - An association (EAIO)

Hubbert Linearization - Way to plot production data in order to estimate Hubbert curve

Huius Loci - Of This Place - Latin

Human Leukocyte - Medicine (EDAA)

Human Lymphoid - Immunology

Hyborean Legion (EA)

Hydraulic Lime (SAUS)

Hydraulics Laboratory - Army

Hydrodynamics Laboratory - MIT (MCD)

Hydrogen Line (MCD)

Hydrology Laboratory - Department of Agriculture - Information service or system (IID)

Hygienic Laboratory - US

Hyperlipemia - Medicine (MELL)

Hypermetropia, Latent - Ophthalmology

Hypertrichosis Lanuginosa - Medicine

Law Reports, House of Lords, English and Irish Appeals - 1866-75 - A publication (DLA)

Mustard/Lewisite Mix - Poisonous gas - Army

South Korea - Civil aircraft markings - international (PIPO)

VEB Deutsche Hydrierwerk, Rodleben - East Germany - Research code symbol

Hole (SAUS)

Hypermetropia, Latent - Medicine (DMAA)

Hyperopia Latent - Ophthalmology (DAVI)

Halite - CIPW classification - Geology

Hectoliter (ADWA)