15-letter words containing a, n, m, o, r
- haute-normandie — a region of NW France, on the English Channel: generally fertile and flat
- heart tamponade — tamponade (def 2).
- hearth and home — domestic realm
- hemadynamometer — An instrument by which the pressure of the blood in the arteries, or veins, is measured by the height to which it will raise a column of mercury.
- hemangiosarcoma — A fast-growing, highly invasive variety of cancer, a sarcoma arising from the lining of blood vessels, occurring almost exclusively in dogs and rarely in cats.
- hematoporphyrin — a porphyrin made by treating haemoglobin with acid, used to treat cancer in photodynamic therapy
- hemicraniectomy — (surgery) The surgical removal of half of the cranium to enable brain surgery; hemicraniotomy.
- hepatocarcinoma — (pathology) cancer of the liver.
- heterochromatin — the dense, highly stainable part of a chromosome.
- heteronormative — noting or relating to behavior or attitudes consistent with traditional male or female gender roles and the assumption of heterosexuality as the norm: our heteronormative culture.
- hopper casement — a casement with a sash hinged at the bottom.
- horned screamer — a screamer, Anhima cornuta, of tropical South America, having a long, slender hornlike process projecting from the forehead.
- human geography — the study of the interaction between human beings and their environment in particular places and across spatial areas.
- human relations — the study of group behavior for the purpose of improving interpersonal relationships, as among employees.
- human resources — (used with a plural verb) people, especially the personnel employed by a given company, institution, or the like.
- hurdle champion — a hurdler who has defeated all others in a competition
- hydrodynamicist — a specialist in hydrodynamics.
- hydromechanical — Of or pertaining to hydromechanics.
- hydroxycoumarin — (organic compound) Any of several isomeric hydroxy derivatives of coumarin, some of which are the basis of pharmaceuticals.
- hyper-emotional — pertaining to or involving emotion or the emotions.
- hyperovarianism — precocious sexuality in girls due to abnormally heavy ovarian secretion.
- hypodorian mode — a plagal church mode represented on the white keys of a keyboard instrument by an ascending scale from A to A, with the final on D.
- hypoproteinemia — an abnormally low concentration of protein in the blood.
- ibero-maurusian — of or relating to an Epipaleolithic culture of northwestern Africa that preceded the Capsian culture and was once erroneously thought to have originated in southwestern Europe; characterized by the use of backed bladelets, occupation of the maritime plain, and the hunting of the Barbary sheep.
- image converter — a device for producing a visual image formed by other electromagnetic radiation such as infrared or ultraviolet radiation or X-rays
- immortalization — to bestow unending fame upon; perpetuate.
- immunoadsorbent — immunosorbent.
- immunomodulator — a substance that affects the functioning of the immune system
- immunoreactions — Plural form of immunoreaction.
- imperial gallon — a British gallon used in liquid and dry measurement equivalent to 1.2 U.S. gallons, or 4.54 liters.
- imponderability — The state or characteristic of being imponderable.
- importunateness — Quality of being importunate.
- improvisational — the art or act of improvising, or of composing, uttering, executing, or arranging anything without previous preparation: Musical improvisation involves imagination and creativity.
- in some measure — a unit or standard of measurement: weights and measures.
- in the majority — the largest group
- in your dreams! — You say `In your dreams!' when you think that what someone wants is never going to happen or be true.
- incendiary bomb — a bomb that is designed to start fires
- incommensurable — not commensurable; having no common basis, measure, or standard of comparison.
- incommensurably — In an incommensurable manner; immeasurably.
- incomparability — beyond comparison; matchless or unequaled: incomparable beauty.
- indetermination — the quality or condition of being indeterminate.
- information age — a period beginning about 1975 and characterized by the gathering and almost instantaneous transmission of vast amounts of information and by the rise of information-based industries.
- informationally — In an informational manner.
- informativeness — giving information; instructive: an informative book.
- inspection arms — a position in military drill in which the missile chamber of a weapon is open for inspection.
- instrumentation — the arranging of music for instruments, especially for an orchestra.
- integral domain — a commutative ring in which the cancellation law holds true.
- intercomparison — mutual comparison
- intermodulation — the production in an electrical device of frequencies that are the sums or differences of frequencies of different inputs or of their harmonics.
- interparoxysmal — occurring in the period or periods between paroxysms.