Acronyms & Abbreviations

The definition of AH is:

Abdominal hysterectomy

Abductor hallucis

Abhenry

Abrasion Hardness

Abronhill High

Absolute humidity

Absorptive hypercalciuria

Accelerated hyperfractionated

Acceptance Handshake

Acceptor Handshake

Accidental hypothermia

Acetohexamide

Acetylhydrolase

Acid hydrolysis

Acoustic Hologram

Acoustic Holography

Active Hub

Acute hepatitis

Acute hypoxia

Acute viral hepatitis

Ad Hoc

Adapter Hardware

Adductor hallucis

Adelante High

Adenohypophysis

Adenoid hypertrophy

Adenomatous hyperplasia

Adenomatous hyperplasias

Administrative Hearings

Adrenal hemorrhage

Adrenal hyperplasia

Adrenal hypoplasia

Adult height

Advanced Helicopter

Aeromonas hydrophila

Affected hemisphere

Affordable Housing

After hatch

After Hours

After-hyperpolarization

Age hardened

Age Hardening

Age-Hardened

Ahwahnee High

AIM High

Air Algérie

Air Hammer

Air handler

Air Hardened

Air Hardening

Air Heater

Air Heating

Airfield heliport

Airway hyperreactivity

Airway hyperresponsiveness

Airy-Heiskanen

Alarm Handler

Albumen height

Alcoholic hepatitis

Alcoholic hyalin

Aldehyde

Alessandro High

Alfalfa hay

Aliso High

Alkali Halide

Allowance Holder

Allowance holders

Allylic Hydrogen

Almanor High

Alpha Helix

Alpha-hemolysin

Alternate Headquarters

Alternating hemiplegia

Aluminium hydroxide

Aluminum hydroxide

Alveolar hemorrhage

Ambegaokar-Halperin

Ambient Humidity

Amenorrhea and hirsutism

American Health

American History

American Hospital

American Hybrid

Aminohexyl

Amistad High

Ammon's Horn

Amp Hour

Ampere Hour

Ampere Hours

Ampere-hour

Ampere-Hours

Amphipathic helix

Amplifier Head

Amplitude of lateral head displacement

Amygdalohippocampectomy

Anaerobic hybrid

Analog Hybrid

Ancestral haplotype

Ancestral haplotypes

Ancient History

Androgenic hormone

Angus x Hereford

Angus-Hereford

Anhydrous Hydrogen

Aniline hydrochloride

Aniline hydroxylase

Antenna Housing

Anterior heel

Anterior horn

Anterior horns

Anterior hypothalamic

Anterior hypothalamic area

Anterior hypothalamic nucleus

Anterior hypothalamus

Antihemagglutinin

Antihistamine

Antihypertensive

Antral histamine

Antwerp and Hamburg

Apollo High

Application Header

Aqueous humor

Aqueous humour

Arc Heating

Arcuate hypothalamus

Area hypothalami anterior

Arena High

Argus High

Armed Helicopter

Armor Holdings, Inc.

Army Helicopter

Army Hospital

Arnold Hall

Aromatic hydrocarbon

Aromatic hydrocarbon responsiveness

Aromatic hydrocarbon-responsive

Aromatic hydrocarbons

Arrow High

Art History

Artech House

Arterial hypertension

Arterial hypotension

Artificial heart

Artificial Horizon

Arts & Humanities

Arts and Humanities

Aryl hydrocarbon

Aryl hydrocarbons

Ascites hepatoma

Ashley Hall

Aspiration Hazard

Assisted hatching

Asteroid hyalosis

Astigmatic hypermetropia

At home

Ataxic hemiparesis

Atmospheric Humidity

Atomic Heat

Atomic Hydrogen

Atrial-His

Atrio-His

Atrio-His bundle conduction time

Atrium-His

Attach Helicopter

Attack Helicopter

Attitude Hold

Atypical hyperplasia

Auditory hallucination

Auditory hallucinations

Aurora High

Authenticated Headers

Authentication Header

Autoimmune hepatitis

Automated Howitzer

Autonomic hyperreflexia

Available Head

Available Hours

Avalon Hill

Average Hour

Avian-human

Axillary hair

Axon Hillock

Hospital ship