15-letter words containing e, p, h, m, r
- ergatandromorph — an ant with the characteristics of both worker and male
- former prophets — a subdivision of the books constituting the second main part of the Hebrew Bible, Joshua, Judges, I-II Samuel, and I-II Kings
- free atmosphere — the part of the atmosphere that lies above the frictional influence of the earth's surface.
- geodemographics — the study and grouping of the people in a geographical area according to socioeconomic criteria, esp for market research
- geomorphogenist — one who studies, or is an expert in, geomorphogeny
- geomorphologist — A geologist whose speciality is geomorphology.
- german shepherd — one of a breed of large shepherd dogs having a coat ranging in color from gray to brindled, black-and-tan, or black, used especially in police work and as a guide for the blind.
- golden samphire — a Eurasian coastal plant, Inula crithmoides, with fleshy leaves and yellow flower heads: family Asteraceae (composites)
- 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.
- heart tamponade — tamponade (def 2).
- hematoporphyria — porphyria.
- hematoporphyrin — a porphyrin made by treating haemoglobin with acid, used to treat cancer in photodynamic therapy
- hemicryptophyte — any perennial plant that bears its overwintering buds at soil level, where they are often partly covered by surface debris
- hepatocarcinoma — (pathology) cancer of the liver.
- hermaphroditism — the condition of being a hermaphrodite.
- hip measurement — a measurement around the hips at the level of the buttocks used in clothing and assessing general health
- hip replacement — a surgical procedure involving replacing the hip joint with an artificial implant
- homoerotophobia — Homophobia; antipathy towards homosexuals.
- honeycomb tripe — a part of the inner lining of the stomach of the steer, calf, hog, or sheep, resembling a honeycomb in appearance and considered a table delicacy.
- hopeful monster — a hypothetical individual organism that, by means of a fortuitous macromutation permitting an adaptive shift to a new mode of life, becomes the founder of a new type of organism and a vehicle of macroevolution.
- hopper casement — a casement with a sash hinged at the bottom.
- human geography — the study of the interaction between human beings and their environment in particular places and across spatial areas.
- humpback bridge — arched bridge
- humphrey bogart — Humphrey (DeForest) ("Bogie"or"Bogey") 1899–57, U.S. motion-picture actor.
- hung parliament — a parliament that does not have a party with a working majority
- hurdle champion — a hurdler who has defeated all others in a competition
- hybrid computer — a computer system containing both analog and digital hardware.
- hyetometrograph — an instrument used to record rainfall
- hyper-emotional — pertaining to or involving emotion or the emotions.
- hyperadrenalism — a glandular disorder caused by the overactivity of the adrenal glands and often resulting in obesity
- hypercatabolism — an abnormally high metabolic breakdown of a substance or tissue which leads to weight loss and physical deterioration
- hyperdemocratic — pertaining to or of the nature of democracy or a democracy.
- hyperexcitement — excessive or extreme excitement
- hyperfemininity — the quality of being feminine; womanliness.
- hyperinsulinism — excessive insulin in the blood, resulting in hypoglycemia.
- hyperlipidaemia — Alternative spelling of hyperlipidemia.
- hyperlipoidemia — An abnormally high level of lipoids in the blood.
- hypermetabolism — Biology, Physiology. the sum of the physical and chemical processes in an organism by which its material substance is produced, maintained, and destroyed, and by which energy is made available. Compare anabolism, catabolism.
- hypermutability — liable or subject to change or alteration.
- hyperovarianism — precocious sexuality in girls due to abnormally heavy ovarian secretion.
- hyperparasitism — an organism that is parasitic on or in another parasite.
- hyperpotassemia — hyperkalemia.
- hypersomnolence — sleepy; drowsy.
- hyperthyroidism — overactivity of the thyroid gland.
- 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.
- imperfect-rhyme — rhyme in which either the vowels or the consonants of stressed syllables are identical, as in eyes, light; years, yours.
- imperial bushel — a unit of dry measure containing 4 pecks, equivalent in the U.S. (and formerly in England) to 2150.42 cubic inches or 35.24 liters (Winchester bushel) and in Great Britain to 2219.36 cubic inches or 36.38 liters (Imperial bushel) Abbreviation: bu., bush.
- imperishability — not subject to decay; indestructible; enduring.
- incomprehension — lack of comprehension or understanding: The audience listened politely but with incomprehension.