15-letter words containing a, r, m, h, o
- diaphototropism — growth of a plant or plant part in a direction transverse to that of the light
- dichloromethane — a noxious colourless liquid widely used as a solvent, e.g. in paint strippers. Formula: CH2Cl2
- dithiocarbamate — any salt or ester of dithiocarbamic acid, commonly used as fungicides
- dysmorphophobia — an obsessive fear that one's body, or any part of it, is repulsive or may become so
- echinodermatous — belonging or pertaining to the echinoderms.
- echocardiograms — Plural form of echocardiogram.
- edmund randolph — A(sa) Philip, 1889–1979, U.S. labor leader: president of the Brotherhood of Sleeping Car Porters 1925–68.
- edriophthalmian — edriophthalmous
- edriophthalmous — (of certain crustaceans) having stalkless eyes
- electrochemical — (chemistry) of, or relating to a chemical reaction brought about by electricity.
- electromyograph — A device used in electromyography to generate electromyograms.
- eleutheromaniac — Having a passionate mania for freedom.
- enantiomorphism — (chemistry) The relationship exhibited by a pair of enantiomorphs.
- enantiomorphous — Of or pertaining to enantiomorphs or enantiomorphism; enantiomorphic.
- endomycorrhizal — Of or pertaining to endomycorrhiza.
- ergatandromorph — an ant with the characteristics of both worker and male
- erythema solare — inflammation of the skin caused by overexposure to the sun
- erythromelalgia — A rare neurovascular peripheral pain disorder in which blood vessels, usually in the lower extremities or hands, are episodically blocked, then become hyperemic and inflamed.
- factory chimney — a tall chimney of a factory
- fairy godmother — a kindly sponsor or guardian; godmother.
- fighter command — a former unit of the Royal Air Force dedicated to the use of fighter aircraft, esp against enemy bombers and their escorts during WWII
- fluorochemicals — Plural form of fluorochemical.
- for that matter — the substance or substances of which any physical object consists or is composed: the matter of which the earth is made.
- four-ball match — a match, scored by holes, between two pairs of players, in which the four players tee off and the partners alternate in hitting the pair's ball having the better lie off the tee.
- free atmosphere — the part of the atmosphere that lies above the frictional influence of the earth's surface.
- french marigold — a composite plant, Tagetes patula, of Mexico, having yellow flowers with red markings.
- gas thermometer — a device for measuring temperature by observing the change in either pressure or volume of an enclosed gas.
- geodemographics — the study and grouping of the people in a geographical area according to socioeconomic criteria, esp for market research
- george marshall — Alfred, 1842–1924, English economist.
- glass harmonica — a musical instrument composed of a set of graduated, revolving glass bowls, the rims of which are moistened and set in vibration by friction from the fingertips.
- golden samphire — a Eurasian coastal plant, Inula crithmoides, with fleshy leaves and yellow flower heads: family Asteraceae (composites)
- gramophonically — in a gramophonic manner
- greenham common — a village in West Berkshire unitary authority, Berkshire; site of a US cruise missile base, and, from 1981, a camp of women protesters against nuclear weapons; although the base had closed by 1991 a small number of women remained until 2000
- gynandromorphic — (of an organism) Having male and female characteristics.
- haematachometer — (dated) An apparatus for measuring the velocity of the blood.
- haemoglobinuria — the presence of haemoglobin in the urine
- haemoglobinuric — relating to the presence of haemoglobin in the urine
- hair hygrometer — a hygrometer actuated by the changes in length of a strand of human hair brought about by changes in the relative humidity.
- halting problem — The problem of determining in advance whether a particular program or algorithm will terminate or run forever. The halting problem is the canonical example of a provably unsolvable problem. Obviously any attempt to answer the question by actually executing the algorithm or simulating each step of its execution will only give an answer if the algorithm under consideration does terminate, otherwise the algorithm attempting to answer the question will itself run forever. Some special cases of the halting problem are partially solvable given sufficient resources. For example, if it is possible to record the complete state of the execution of the algorithm at each step and the current state is ever identical to some previous state then the algorithm is in a loop. This might require an arbitrary amount of storage however. Alternatively, if there are at most N possible different states then the algorithm can run for at most N steps without looping. A program analysis called termination analysis attempts to answer this question for limited kinds of input algorithm.
- hamiltonstovare — a large strong short-haired breed of hound with a black, brown, and white coat
- harmonic motion — periodic motion consisting of one or more vibratory motions that are symmetric about a region of equilibrium, as the motion of a vibrating string of a musical instrument.
- harmonic series — a series in which the reciprocals of the terms form an arithmetic progression.
- 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
- heliometrically — By means of, or in terms of, heliometry.
- 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.
- hematoporphyria — porphyria.
- hematoporphyrin — a porphyrin made by treating haemoglobin with acid, used to treat cancer in photodynamic therapy