Table 5.12 — ECs with labels beginning with H
Label Concept definition Figure(s) Code
HAIL <SOLID_PRECIPITATION> of either transparent or partly or completely opaque <PARTICLE>s of <ICE> (hailstones), usually spherical, conical, or irregular in form and of <<OUTSIDE_DIAMETER>> generally between 5 and 50 millimetres, that falls from a <CLOUD> either separately or agglomerated into irregular lumps; hail.   506
HALLWAY An entrance-hall or passage serving as a <ROUTE> to various <ROOM>s in a <BUILDING>; hallway [SOED, "hallway"]. A hallway is also known as a corridor.   507
HARBOUR A <WATERBODY_REGION> providing <ANCHORAGE> and protection for <VESSEL>s; harbour.   508
HARBOUR_COMPLEX A <HARBOUR> including one or more <ANCHORAGE_COMPLEX>s; harbour complex.   509
HARD_STANDING An open <TRACT> with a prepared <SURFACE> of pavement or gravel used for parking and/or storing <VEHICLE>s, particularly <AIRCRAFT>; hard standing [SOED, "hard standing"].   510
HARDENED_AIRCRAFT_SHELTER A reinforced <SHELTER> that is resistant to <MUNITION>s and is designed for the protection of <AIRCRAFT>; hardened aircraft shelter.   511
HAYSTACK A regular pile of hay built in the open air; haystack.   512
HAZARD_MARKER A <MARKER> placed near or on a <TERRAIN_SURFACE_REGION> or <TERRAIN_SURFACE_OBJECT> to identify it as a potential hazard.   513
HEALTH_OFFICE A <BUILDING> used in the diagnosis and care of outpatients; health office. A health office is also known as a clinic.   514
HEAT_RADIATOR <EQUIPMENT> consisting of a <STORAGE_TANK> and/or compact array of <PIPE>s that: has a large surface <<AREA>>; is heated, usually by circulating steam or hot <WATER>; and gives off warmth by radiation and convection; heat radiator [SOED, "radiator", 2].   515
HEATING_FACILITY A <FACILITY> for the generation of thermal energy for heating purposes.   516
HEAVY_INDUSTRIAL_FACILITY A <FACILITY> devoted to the processing of <MATERIAL> and/or the manufacture of goods (for example: steel, aluminum, glass, or <MOTOR_VEHICLE>s) that generally require significant <EQUIPMENT>, <MATERIAL>, and energy inputs; heavy industrial facility.   517
HEDGEROW A continuous growth of <SHRUB>s planted as a <FENCE>, a <BOUNDARY>, and/or a windbreak; hedgerow.   518
HELICOPTER An <AIRCRAFT> deriving both lift and propulsive power from horizontally revolving rotor blades and capable of ascending and descending vertically; helicopter [SOED, "helicopter"].   519
HELICOPTER_LANDING_PAD An improved <SITE> used for take-off and landing VTOL <AIRCRAFT> (for example: a <HELICOPTER>); helicopter landing pad.   520
HELIPORT An <AERODROME> or a defined <REGION> on a <STRUCTURE> intended to be used wholly or in part for the arrival, departure, and/or surface movement of <HELICOPTER>s; heliport.   521
HIGH_CLOUD A <CLOUD> of the genus cirrus, cirrocumulus, or cirrostratus; high cloud. Also the top of a <CLOUD> of the genus cumulonimbus or, occasionally, altostratus.   522
HIGH_PRESSURE_CENTRE The <LOCATION> of the centre of an <ATMOSPHERE_REGION> of high <<ATM_PRESSURE>>.   523
HILL A small, isolated, elevated <TERRAIN_SURFACE_REGION> that is smaller than a <MOUNTAIN>; hill.   524
HINDU_TEMPLE A <WORSHIP_PLACE> for Hindu worship; Hindu temple.   525
HISTORICAL_BUILT_UP_REGION A <TRACT> containing a concentration of historical <STRUCTURE>s within an enclosing <BUILT_UP_REGION>.   526
HOAR_FROST A deposit of <ICE> (hoar crystals) that generally assumes the form of scales, needles, feathers, or fans and that forms on <OBJECT>s the <SURFACE>s of which are sufficiently cooled, usually by nocturnal radiation, to bring about deposition of the water vapour contained in the ambient <AIR>; hoar frost.   527
HOLDING_PATTERN_REGION A delimited <ATMOSPHERE_REGION> within which <AIRCRAFT> follow a holding pattern while awaiting further clearance instructions.   528
HOP_FIELD A <TRACT> covered by the systematic planting of hop vines; hop field.   529
HOPPER A top-loaded, funnel-shaped <STRUCTURE> for temporary holding of loose <MATERIAL> that will be dispensed from its bottom; hopper.   530
HORSE A solid-hoofed perissodactyl ungulate <MAMMAL> of the family Equidae; horse [SOED, "horse", 1].   531
HOSPITAL_BUILDING A <BUILDING> used to provide inpatient medical, surgical, or psychiatric care and treatment for the sick or the injured; hospital building.   532
HOSTEL A <BUILDING> used to provide supervised, inexpensive lodging for travellers, especially young travellers; hostel [AHD, "hostel", 1].   533
HOTEL A <BUILDING> used to provide lodging, and usually meals and other services, for travellers and other paying guests; hotel [AHD, "hotel"].   534
HOUSE A <BUILDING> serving as a <DWELLING> for one or more <HUMAN>s, especially for a family; house [AHD, "house", 1.a].   535
HULK A permanently moored <WATER_SURFACE_VESSEL>; hulk.   536
HUMAN A member of the <ANIMAL> species Homo sapiens; human [SOED, "human", B.1].   537
HUMMOCK A small, more or less rounded, protruberance rising above the level of the surrounding <TERRAIN>; hummock [SOED, "hummock", 1 and 2].
EXAMPLES     A coastal sand-hill, a mound or <RIDGE> in an <ICE_FIELD>, a <TRACT> of higher <<TERRAIN_ELEVATION>> than the <WETLAND> that surrounds it.
  538
HURRICANE A warm core <TROPICAL_CYCLONE> with a maximum surface <<WIND_SPEED>> of 33 metres per second or greater in the North Atlantic, the Caribbean, the Gulf of Mexico, and in the eastern North Pacific; hurricane.   539
HUT A small, simple, or crude <HOUSE> or <SHELTER>; hut.   540
HYDROFOIL_VESSEL A <WATER_SURFACE_VESSEL> supported on airfoil-like pontoons where the bulk of the hull remains above the <WATERBODY_SURFACE> while in motion; hydrofoil vessel.   541
HYDROGRAPHIC_LOCK A <LOCK_BASIN> with a pair or series of <LOCK_GATE>s used for raising or lowering <VESSEL>s as they pass from one level to another; hydrographic lock.   542
HYDROGRAPHIC_SURVEY_CONTACT An <UNDERWATER_OBJECT> detected during a hydrographic survey; hydrographic survey contact.   543
HYDROGRAPHY A <WATERBODY> and its adjoining <SHORE>s; hydrography.   544
HYDROLOGIC_OBJECT A planetary <OBJECT> related to <WATER>; hydrologic object.   545