13-letter words containing a, m, t, o, r
- halobacterium — Any of various extremophiles, of genus Halobacterium, found in water saturated or nearly saturated with salt.
- hampton roads — a channel in SE Virginia between the mouth of the James River and Chesapeake Bay: battle between the Monitor and the Virginia 1862.
- harbor master — an official who supervises operations in a harbor area and administers its rules.
- harbourmaster — (British, Canada, nautical) An official responsible for the enforcement of regulations in a port.
- harmonic tone — a tone produced by suppressing the fundamental tone and bringing into prominence one of its overtones.
- harmonisation — (British spelling) alternative spelling of harmonization.
- harmonization — to bring into harmony, accord, or agreement: to harmonize one's views with the new situation.
- harvest mouse — an Old World field mouse, Micromys minutus, that builds a spherical nest among the stems of grains and other plants.
- hatemongering — The behaviour of a hatemonger; the spreading of hatred.
- heart monitor — a machine that registers the activity of the heart
- heart of palm — the stripped terminal bud of a cabbage palm, especially of the genus Euterpe, eaten in salads or as a vegetable.
- heart problem — a defect or disease of the heart
- hemacytometer — hemocytometer.
- hematothermal — warm-blooded; homoiothermal.
- hemichordates — Plural form of hemichordate.
- hermaphrodite — an individual in which reproductive organs of both sexes are present. Compare pseudohermaphrodite.
- hermaphrodyte — (archaic) alternative spelling of hermaphrodite.
- heterogametes — Plural form of heterogamete.
- heterogametic — (of a species or individual organism) having two unlike gametes.
- heterothermal — having a different or varying temperature
- hierogrammate — a writer of hierograms
- histogramming — (mathematics) The construction of histograms.
- home straight — the section of a racecourse forming the approach to the finish
- homochromatic — of or relating to one hue; monochromatic.
- homoiothermal — having a body temperature that is relatively constant and mostly independent of the temperature of the environment; warm-blooded (opposed to poikilothermic).
- hotel manager — sb who runs a hotel
- hygrometrical — Alternative form of hygrometric.
- hymenopterans — Plural form of hymenopteran.
- hypermetropia — a condition of the eye in which parallel rays are focused behind the retina, distant objects being seen more distinctly than near ones; farsightedness (opposed to myopia).
- hypermorality — conformity to the rules of right conduct; moral or virtuous conduct.
- hypermutation — (uncountable) Frequent mutation.
- hyperromantic — extremely or excessively romantic
- hyponatraemia — a condition in which there is a low concentration of sodium in the blood
- hypsometrical — Of or pertaining to hypsometry.
- hyracotherium — eohippus.
- iatrochemical — relating to iatrochemistry or iatrochemists
- ideogrammatic — Of or pertaining to ideograms.
- idiochromatic — (of a mineral) deriving a characteristic color from its capacity to absorb certain light rays.
- 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:
- immigrational — the act of immigrating.
- immortalizing — Present participle of immortalize.
- immunotherapy — treatment designed to produce immunity to a disease or enhance the resistance of the immune system to an active disease process, as cancer.
- impenetration — thorough penetration
- imperforation — Also, imperforated. not perforate; having no perforation.
- imperial moth — a yellow moth, Eacles imperialis, having a diagonal band of pinkish brown or purple: the hairy larvae feed on the leaves of hickory, oak, etc.
- impersonality — absence of human character or of the traits associated with the human character: He feared the impersonality of a mechanized world.
- impersonating — to assume the character or appearance of; pretend to be: He was arrested for impersonating a police officer.
- impersonation — to assume the character or appearance of; pretend to be: He was arrested for impersonating a police officer.
- impersonators — Plural form of impersonator.
- impignoration — the state of being mortgaged