What does IH stand for?

Channel Flying - ICAO designator (AD)

Hinsdale Public Library, Hinsdale, IL - Library symbol - Library of Congress (LCLS)

Iacet Hic - Here Lies - Latin

Ice Haulage

ICH Corp. - AMEX symbol (SPSG)

Idiopathic Hemachromatosis - Medicine

Idiopathic Hirsutism - Medicine (MELL)

Idiopathic Hypercalciuria - Medicine

Idiopathic Hypersomnia - Medicine

Immediate Hypersensitivity - Immunology

Immediate-type Hypersensitivity (SAUS)

Immersion Heater (SAUS)

Immobilized Histamine - Biochemistry

Impact on Hunger (EA)

Imperforate Hymen - Medicine (MELL)

Incipient Heavies - Slang for rising young bureaucrats in the foreign policy field

Incisional Hernia - Medicine (MELL)

Incompletely Healed - Medicine (MELL)

Indent Hanging - Graphic arts (DGA)

Index of Homogeneity - Botany

Indirect Heating (SAUS)

Indirect Hemagglutination - Hematology (DAVI)

Indirectly Heated (DEN)

Indo-Hittite (BJA)

Induction Heating (SAUS)

Industrial Handling (SAUO)

Industrial House (ROG)

Industrial Hygiene (LDOE)

Industrial Hygienist - Occupational Safety and Health Administration

Industrialized Housing (SAUS)

Infantile Hydrocephalus - Medicine (EDAA)

Infectious Hepatitis - Medicine

Infective Hepatitis - Medicine (EDAA)

Informed Homebirth - Later, IH/IBP (EA)

Inguinal Hernia - Gastroenterology (DAVI)

Inhibit

Inhibiting Hormone

Inhibitory Hormone (SAUS)

In Home - Men's lacrosse position

In-House

In-House Application (SAUS)

Initial Heading

Innateness Hypothesis - Linguistics

Inner Half (MAE)

Inner Housing (COE)

Inpatient, Hospital

Inside Height

Inside Home - Baseball

Inspector-General of Hospitals and Fleets - Navy - British (ROG)

Inspired Humidity - Anesthesiology

Installation Handbook

Institute of Housing - British

Institute of Hydrology - Research center - British

Institute of Hygiene (SAUO)

Instrument Head

Interaction Handler - Computer science (OA)

Interior Height (SAUS)

Internationale Horngesellschaft - International Horn Society (EAIO)

International Harvester (SAUS)

International Harvester Co.

International Holdings Corp. (SAUO)

International Humanism (SAUS)

Internet Hub (SAUS)

Interrupt Handler - Computer science (IAA)

Interval History (SAUS)

Intracerebral Haematoma (SAUS)

Intracranial Hematome - Medicine (MELL)

Inverted Hour (SAUS)

Irish Horse - British military (DMA)

Iron Hematoxylin - A dye

Isme-Dagan Hymn (BJA)

Isohyperthermic - Soil biology - Soil temperature regime (QSUL)

Israel's Herald - A publication (BJA)

Itavia - ICAO designator (AD)

It Has - Telegraphy (PCTE)

International House (SAUO)