19-letter words containing r, m, e, t, h
- electron micrograph — a photograph or image of a specimen taken using an electron microscope
- emergency telephone — a public telephone intended for use in emergencies: for example, at the side of a motorway
- estate of the realm — an order or class of persons in a political community, regarded collectively as a part of the body politic: usually regarded as being the lords temporal (peers), lords spiritual, and commons
- euclidean algorithm — Euclid's Algorithm
- exophthalmic goiter — a disease of unknown cause characterized by enlargement of the thyroid gland, overproduction of the thyroid hormone, and abnormal protrusion of the eyeballs
- exophthalmic goitre — a form of hyperthyroidism characterized by enlargement of the thyroid gland, protrusion of the eyeballs, increased basal metabolic rate, and weight loss
- feather-duster worm — any tube-dwelling polychaete worm of the families Sabellidae and Serpulidae, the numerous species having a crown of feathery tentacles used in feeding and respiration.
- flame-of-the-forest — a leguminous tree, Butea frondosa, native to E India and Myanmar, having hanging clusters of scarlet flowers
- flannelmouth sucker — a sucker, Catostomus latipinnis, of the Colorado River and its tributaries.
- flavor of the month — Informal. the subject of intense, usually temporary interest; the current fashion.
- four colour theorem — four colour map theorem
- frameshift mutation — a mutation caused by frameshift.
- freedom of the city — nominal citizenship in a city, conferred as an honor upon important visitors.
- freedom of the seas — the doctrine that ships of neutral countries may sail anywhere on the high seas without interference by warring powers.
- from rags to riches — a worthless piece of cloth, especially one that is torn or worn.
- general of the army — the highest ranking military officer; the next rank above general.
- geothermal gradient — the increase in temperature with increasing depth within the earth.
- go on a/the rampage — If people go on a rampage, they rush around in a wild or violent way, causing damage or destruction.
- go under the hammer — to be offered for sale by an auctioneer
- grandmother's clock — a pendulum clock similar to a grandfather's clock but shorter.
- great idaean mother — Cybele.
- greenwich mean time — the time as measured on the prime meridian running through Greenwich, England: used in England and as a standard of calculation elsewhere.
- hairdryer treatment — (esp in sport) the practice of shouting at someone at close quarters in order to express one's displeasure at something he or she has done
- hamiltonian problem — (computability) (Or "Hamilton's problem") A problem in graph theory posed by William Hamilton: given a graph, is there a path through the graph which visits each vertex precisely once (a "Hamiltonian path")? Is there a Hamiltonian path which ends up where it started (a "Hamiltonian cycle" or "Hamiltonian tour")? Hamilton's problem is NP-complete. It has numerous applications, sometimes completely unexpected, in computing.
- handlebar moustache — a man's moustache having long, curved ends that resemble the handlebars of a bicycle.
- have a problem with — to be unable to understand or do
- heart in your mouth — If your heart is in your mouth, you feel very excited, worried, or frightened.
- heine-borel theorem — the theorem that in a metric space every covering consisting of open sets that covers a closed and compact set has a finite collection of subsets that covers the given set.
- hepatoportal system — a vascular arrangement in vertebrates through which blood is transported into the liver from capillaries of the stomach, spleen, duodenum, pancreas, and intestines.
- hermes trismegistus — a name variously ascribed by Neoplatonists and others to an Egyptian priest or to the Egyptian god Thoth, to some extent identified with the Grecian Hermes: various mystical, religious, philosophical, astrological, and alchemical writings were ascribed to him.
- hermetically sealed — airtight
- hermitian conjugate — adjoint (def 2).
- high-pressure steam — High-pressure steam is steam which is at or above 75 pounds per square inch gauge pressure.
- highways department — the department of a state, council, etc, responsible for the upkeep of roads and highways
- human rights abuses — acts that contravene human rights
- human rights record — the facts that are known about the tendency of a country, regime, etc, to observe and protect human rights
- hydropneumatization — utilization of air pressure in the housing of a water turbine to keep the level of water that has been used from rising to interfere with the rotor blades.
- hyperbolic geometry — the branch of non-Euclidean geometry that replaces the parallel postulate of Euclidean geometry with the postulate that two distinct lines may be drawn parallel to a given line through a point not on the given line.
- hypercholesteraemia — (medicine) An abnormally high level of cholesterol in the blood.
- hyperparathyroidism — overactivity of the parathyroid gland, characterized by softening of the bones, with consequent pain, tenderness, and a tendency to spontaneous fractures, and by muscular weakness and abdominal cramps.
- hypocholesterolemia — an abnormally low amount of cholesterol in the blood.
- hypocholesterolemic — (pathology) Of, pertaining to, or having hypocholesterolemia.
- hypolipoproteinemia — An abnormally low level of lipoprotein in the blood.
- hysterosalpingogram — An X-ray image taken during hysterosalpingography.
- immunocytochemistry — the detection of chemical components of cells by means of antibodies coupled to substances that can be made visible.
- in one's right mind — sane
- incomprehensibility — impossible to understand or comprehend; unintelligible.
- inorganic chemistry — the branch of chemistry dealing with inorganic compounds.
- intermediate school — a school for pupils in grades 4 through 6.
- internal hemorrhoid — Usually, hemorrhoids. Pathology. an abnormally enlarged vein mainly due to a persistent increase in venous pressure, occurring inside the anal sphincter of the rectum and beneath the mucous membrane (internal hemorrhoid) or outside the anal sphincter and beneath the surface of the anal skin (external hemorrhoid)