What does hs stand for?

hail and snow (SAUS)

History - Medicine (DMAA)

Hora Somni - Hour of Sleep - Latin (STED)

Hour of Sleep - At bedtime - Therapy term (CTAA)

House (VRA)

Deuterium (SAUS)

Hassium - Proposed name and symbol for recently-discovered element

Height, Storey (SAUS)

Hemisphere - A publication (SAUS)

Hypochondriasis - Psychology

Aeronoleggi e Lavoro Aereo (AERAL) - Italy - ICAO designator (ICDA)

Air-Cushion Vehicle built by Hoversport - US - Usually used in combination with numerals

CHS Electronics - NYSE symbol

Die Heilige Schrift des Alten Testaments - Bonn - A publication (BJA)

Habitability System - NASA (KSC)

Habituation Stimulus - to light

Hair Space - Publishing (DGA)

Hakluyt Society (EA)

Halfsheet - Publishing (DGA)

Half Strength

Half Subtractor - Circuitry

Halleworden-Spatz - Syndrome - Medicine (DB)

Hamstring (MELL)

Handbook of Statistics - A publication (SAUS)

Handset

H & S Railroad - Federal Railroad Administration identification code

Hand-Starter

Hand Surgery - Medical specialty (DHSM)

Hand Switch - Nuclear energy (NRCH)

Hanford Specifications (SAUS)

Hanford Square (SAUS)

Hansard Society - British (ILCA)

Harbor Service (SAUO)

Harbour Service (SAUS)

Hardened Site

Hardness Surveillance (MSA)

Hard Sized (SAUS)

Hard Sized Paper (DGA)

Hard/Soft Ratio (SAUS)

Hard Solder (SAUS)

Hard Sphere Model (SAUS)

Hardstand

Hard Standing (SAUO)

Hard Stripping - Agriculture (OA)

Harleian Society (SAUO)

Harmonised System - Customs commodity coding and description - British

Harness or Saddlery

Hartford & Slocomb Railroad Co. - AAR code

Hartman's Solution - Dentistry

Hartman Systems (SAUS)

Harvard Speciality Company, Inc. (SAUO)

Harveian Society of London (SAUO)

Harvey Society (EA)

Hauptsatz - Leading Theme - Music

Have Sold - Travel industry (TVEL)

Hawker Siddeley (SAUO)

Hawker Siddeley Aviation Ltd. - British - ICAO aircraft manufacturer identifier (ICAO)

Haydn Society - Record label

Hazardous Substance (MELL)

Hazardous Substance Storage (IDEM)

Header Statement (SAUS)

Heading Statement (SAUS)

Headquarters State (NITA)

Head Set - Telecommunications (IAA)

Head Sling

Headspace - Above liquids

Headspace Sampler - Instrumentation

Heads Sampler (SAUS)

Head Start (SAUS)

Head Suppression (AAG)

Health Services Technician - Military (DOMA)

Healthsource, Inc. - NYSE symbol (SPSG)

Health Study (SAUS)

Heard Sounds (SAUS)

Heart Sounds - Medicine

Heated Seats

Heater Shield (SAUS)

Heather Society (EA)

Heating Surface

Heating System

Heat Shield - Aerospace (AAG)

Heat-Shrinkable (SAUS)

Heat Sink (SAUS)

Heat Stable

Heat Switch (SAUS)

Heaviside - Ionosphere (AAG)

Heavy-duty Synthetic (SAUS)

Heel Spur - Orthopedics (DAVI)

Heel Stick - For blood samples - Medicine (DAVI)

Heel Strike - Medicine

Height above Spherical Earth

Height of Site (SAUS)

Heinsberg - German license plate city code

Helical Spring

Helicopter Antisubmarine Squadron (SAUS)

Helicopter Squadron

Helicopter Squadron, Antisubmarine (MCD)

Helicopter System

Helios Semiconductor (IAA)

Hells Sharks

Helmet Shield

Helminthosporium sacchari - A toxin-producing fungus

Heme Synthetase - An enzyme (AAMN)

Hemingway Society (EA)

Hemisuccinyl (SAUS)

Hemlock Society (EA)

Hemorrhagic Septicemia (SAUS)

Hemorrhagic Shock - Medicine

Hemstitched

Henoch-Schoenlein Syndrome - Medicine

Heparin Sulfate - Biochemistry

Hepatic Scintigraphy - Medicine

Hepatosplenic Schistosomiasis - Medicine

Heraldisk Selskab - Denmark - An association (EAIO)

Heraldry Society (EA)

Hereditary Spherocytosis - Medicine

Hermetically Sealed (IAA)

Herpes Simplex

Heuristic Search (SAUS)

Hic Sepultus - Here Is Buried - Latin

Hic Situs - Here Lies - Latin (GPO)

Hide Substance (SAUS)

Hidradenitis Suppurative - Medicine

Hierarchically Structured - Indexing language (NITA)

Hierarchical Sequential - Computer science (ELAL)

Hierarchical Sequential Organization - Computer science (ITCA)

Highest Score (ADA)

Highly Sensitive System (MCD)

High School - Firearms use code - Firearms collecting (FAUC)

High School

High Sensitivity

High Shear (SAUS)

High Shock Resistant (IAA)

High Sierra - NCIC firearms make code (NCIC)

High Similarity (SAUS)

High-Similarity - Psychology

High Speed

High-Speed Adapter (IAA)

High-Speed Arithmetic (IAA)

High Spin (EDCT)

High Spontaneous Activity

High Stability (SAUS)

High Stage (MCD)

High Strength - Steel - Automotive engineering

High Structure (SAUS)

High Survivability (SAUS)

Highway Safety

Hindenberg Society (EA)

Hindlimb Suspension - Technique for limiting use or movement by restraining animal

Hinged Seat (AAG)

Hinge Side

His - Telegraphy (PCTE)

Histamine Sensitive - Immunology

Histiocyte Society (SAUO)

Historical Period Starting Date - Dialog - Searchable field - Information service or system (NITA)

Historical Studies - A publication (SAUS)

Historical Survey

Historic Scotland - An agency - Scotland (AHDS)

Historic Site (SAUS)

History Section - Reference and Adult Services Division - American Library Association

Hoc Sensu - In This Sense - Latin (GPO)

Hohenzollern Society (EA)

Hollaender-Simons - Disease - Medicine (DB)

Hollerith System (SAUS)

Hollow Spindle (SAUS)

Holographic Stereogram (OA)

Holy Sea (SAUS)

- The Holy See

Homeland Security Program - National Institute of Standards and Technology (RCD)

Home Secretary - British

Home Service - British (MILB)

Home Station - DoD

Homestead (ADA)

Home Surgeon - Medicine - British

Homing Sequence (IAA)

Homologous Serum

Honorary Secretary

Hopper Soliday Corp. (SAUO)

Horae Soederblomianae (BJA)

Hora Somni - At Bedtime - Pharmacy

Horizon Scanner

Horizon Search (SAUS)

Horizon Sensor

Horizontally Selective - Medicine (DMAA)

Horizontally Sliding (SAUS)

Horizontal Shear

Horizontal Stripes - On buoys, beacons

Horizontal Synchronizing (SAUS)

Horizontal Synchronous - Computer science

Horizontal System - Government arrangement (OICC)

Hormones - Medicine (EDAA)

Horner Syndrome - Medicine (DMAA)

Horse Serum - Immunology

Horticultural Society (SAUO)

Hospital Services (FOTI)

Hospital Ship

Hospitals Staff (SAUO)

Hospital Staff

Hospital Surgeon - British military (DMA)

Host Software Testing Section (SAUS)

Hot Shop - Nuclear energy (NRCH)

Hot Soak - Automotive engineering

Hot Spraying

Hot Stage (SAUS)

Hot Stuck - Fuels and lubricants

Hot Stuff - Slang - Bowdlerized version

Hours of Scheduled Operations (SAUS)

Hours of Sleep - Medicine

House Supervisor

House Surgeon

Housing Scheme - British

Housing Statistics

Housman Society (EA)

Hughes Electronics Corp. - NYSE symbol

Hughes Space (ACAE)

Hughes Standard (ACAE)

Humane Society (ROG)

Humanities in the South - A publication (SAUS)

Human Source (FOTI)

Hume Society (EA)

Humic Substances - Biology

Hundred Square Feet (DNAB)

Hun-Stoffe - US Chemical Corp. symbol for mustard gas - Also, HD, HT, M - Later, H

Hurler's Syndrome - Medicine

Hybrid Switching - Telecommunications

Hydraulic Supply

Hydraulic System

Hydrazine Sulfate - Toxic substance - Inorganic chemistry

Hydrofoil Ship

Hydrogen Sulfide (GNE)

Hydrogen Swelling - Chemistry

Hydrographic Society (SAUO)

Hydrostatic (SAUS)

Hydroxylamine Sulfate (EDCT)

Hypersensitization (SAUS)

Hypersonic

Hypothetical Syllogism - Rule of inference - Logic

International Journal of Health Services - A publication (SAUS)

Marshall's Air - ICAO designator (AD)

Saint Helena - NCIC country-territory code (NCIC)

Sandoz Pharmaceuticals - Research code symbol

Service Available During Scheduled Operations - ICAO (FAAC)

Siglum for Tablets in the Frau Professor Hilprecht Collection of Babylonian Antiquities - Jena (BJA)

Sulfur Mustard - Emergency Management (EMA)

Thailand - International civil aircraft marking (ODBW)