13-letter words containing a, r, s, g
- head register — the high register of the human voice.
- heading sword — a sword used for beheading.
- heart massage — rhythmic manual compression of the sternum or heart to restore normal heartbeat, as after cardiac arrest.
- heart surgeon — a surgeon who specializes in performing operations on the heart
- heart surgery — operation to treat cardiac problems
- heartstopping — Very exciting or shocking, as though to cause one's heart to skip beats.
- hedge sparrow — the dunnock.
- hellgrammites — Plural form of hellgrammite (Alternative spelling of hellgramites).
- heresiography — a treatise on heresy.
- heritage site — a historical site, a building, or an area of the unspoilt natural environment, considered to be important to a country or area's heritage
- heterogametes — Plural form of heterogamete.
- heteroglossia — (linguistics) the coexistence of distinct varieties within a single linguistic code.
- histaminergic — releasing histamine
- histogramming — (mathematics) The construction of histograms.
- home straight — the section of a racecourse forming the approach to the finish
- horse gentian — any weedy North American plant of the genus Triosteum, of the honeysuckle family, especially T. perfoliatum, having stalkless leaves and purplish-brown flowers and bearing orange fruits.
- horse trading — the act or fact of conducting a shrewd exchange or engaging in a horse trade; bargaining.
- horse-trading — to bargain or trade shrewdly.
- house manager — a business manager responsible for managing a theater and its staff.
- house-raising — a gathering of persons in a rural community to help one of its members build a house.
- house-warming — a party to celebrate a person's or family's move to a new home.
- housebreaking — to train (a pet) to excrete outdoors or in a specific place.
- housetraining — Present participle of housetrain.
- housewarmings — Plural form of housewarming.
- housing start — an instance of beginning the construction of a dwelling.
- hypermegasoma — gigantism.
- iconographies — Plural form of iconography.
- image formats — (graphics, file format) There are many formats used to store images in files. GIF, TIFF and JPEG are very common. Others are BIFF, bmp, Clear, FITS, IFF, NFF, OFF, PCX, PNG, TGA, XBM. Some of these are documented on-line at the following sites:
- imaginariness — The state of being imaginary.
- impersonating — to assume the character or appearance of; pretend to be: He was arrested for impersonating a police officer.
- inaugurations — Plural form of inauguration.
- integral test — the theorem that a given infinite series converges if the function whose value at each integer is the corresponding term in the series is decreasing, tends to zero, and results in a finite number when integrated from one to infinity.
- interglacials — Plural form of interglacial.
- internalising — Present participle of internalise.
- interrogators — Plural form of interrogator.
- intransigeant — intransigent
- intransigence — the state or quality of being intransigent, or refusing to compromise or agree; inflexibility: No agreement was reached because of intransigence on both sides.
- intransigency — a person who refuses to agree or compromise, as in politics.
- introgressant — an individual resulting from introgression
- investigators — Plural form of investigator.
- investigatory — to examine, study, or inquire into systematically; search or examine into the particulars of; examine in detail.
- ipecac spurge — a spurge, Euphorbia ipecacuanhae, of the eastern U.S.
- irregularness — Quality of being irregular.
- isoamyl group — the univalent group C 5 H 11 .
- jack-the-rags — a rag-and-bone man
- john o'groats — the northern tip of Scotland, near Duncansby Head, NE Caithness, traditionally thought of as the northernmost point of Britain: from Land's End to John o'Groat's House.
- johnson grass — a sorghum, Sorghum halepense, that spreads by creeping rhizomes, grown for fodder.
- key signature — (in notation) the group of sharps or flats placed after the clef to indicate the tonality of the music following.
- kindergartens — Plural form of kindergarten.
- king's ransom — an extremely large amount of money: The painting was sold for a king's ransom.