17-letter words containing e, n, c, h, y
- homeland security — national defence
- huygens principle — the principle that all points on a wave front of light are sources of secondary waves and that surfaces tangential to these waves define the position of the wave front at any point in time.
- huygens' eyepiece — a telescope eyepiece consisting of two planoconvex lenses separated by a distance equal to half the sum of their focal lengths, which are in the ratio of three to one, and oriented so that their curved surfaces face the incident light
- hyaline cartilage — the typical, translucent form of cartilage, containing little fibrous tissue.
- hydrogen chloride — a colorless gas, HCl, having a pungent odor: the anhydride of hydrochloric acid.
- hyperbolic cosine — one of a group of functions of an angle expressed as a relationship between the distances of a point on a hyperbola to the origin and to the coordinate axes; cosh
- hyperbolic secant — a hyperbolic function that is the reciprocal of cosh; sech
- hyperchlorination — Chemistry. to combine or treat with chlorine. to introduce chlorine atoms into an organic compound by an addition or substitution reaction.
- hyperconnectivity — Hyperconnectivity is the use of many systems and devices so that you are always connected to social networks and other sources of information.
- hyperintellectual — appealing to or engaging the intellect: intellectual pursuits.
- hypodermic needle — a hollow needle used to inject solutions subcutaneously.
- in the public eye — featured prominently in the media
- incomprehensively — In an incomprehensive manner.
- indecipherability — Quality of being indecipherable.
- iontophoretically — By means of iontophoresis.
- maraschino cherry — a cherry cooked in colored syrup and flavored with maraschino, used to garnish desserts, cocktails, etc.
- methyl isocyanate — Chemistry. a highly toxic, flammable, colorless liquid, CH 3 NCO, used as an intermediate in the manufacture of pesticides: in 1984, the accidental release of a cloud of this gas in Bhopal, India, killed more than 1700 people and injured over 200,000.
- microphanerophyte — any shrub or tree having a height of 2 to 8 metres
- monarch butterfly — a large, deep-orange butterfly, Danaus plexippus, having black and white markings, the larvae of which feed on the leaves of milkweed.
- nephelometrically — By means of nephelometry.
- neuropharmacology — the branch of pharmacology concerned with the effects of drugs on the nervous system.
- neuropsychiatrist — A medical doctor specializing in neuropsychiatry; a medical doctor dealing with disorders that have both neurological and psychiatric features.
- neuropsychologist — A neurologist or psychologist whose speciality is neuropsychology.
- nonphotosynthetic — the complex process by which carbon dioxide, water, and certain inorganic salts are converted into carbohydrates by green plants, algae, and certain bacteria, using energy from the sun and chlorophyll.
- nuclear chemistry — the branch of chemistry concerned with nuclear reactions
- oceanographically — In terms of oceanography.
- once over lightly — a hasty or superficial treatment, look, examination, etc.; once-over: The maid gave the room the once-over-lightly.
- once-over-lightly — a hasty or superficial treatment, look, examination, etc.; once-over: The maid gave the room the once-over-lightly.
- organic chemistry — the branch of chemistry, originally limited to substances found only in living organisms, dealing with the compounds of carbon.
- parachute payment — a payment made to alleviate hardship resulting from a sudden loss of income
- pay-cable channel — a television channel that has to be paid for
- perchloroethylene — tetrachloroethylene.
- personality clash — friction between two people who have different personalities or points of view
- phantom pregnancy — the occurrence of signs of pregnancy, such as enlarged abdomen and absence of menstruation, when no embryo is present, due to hormonal imbalance
- phenethyl alcohol — a colorless, viscous, slightly water-soluble liquid, C 8 H 1 0 O, having a faint roselike odor: used chiefly in perfumery.
- phenyl isocyanate — a liquid reagent, C 7 H 5 NO, having an unpleasant, irritating odor: used chiefly for identifying alcohols and amines.
- phenylacetic acid — a white crystalline, aromatic acid, C 8 H 8 O 2 , used in the manufacture of penicillin and in perfumes.
- phenylformic acid — benzoic acid.
- physical medicine — the branch of medicine dealing with the diagnosis and treatment of disease and injury by means of physical agents, as manipulation, massage, exercise, heat, or water.
- physical pendulum — any apparatus consisting of a body of possibly irregular shape allowed to rotate freely about a horizontal axis on which it is pivoted (distinguished from simple pendulum).
- polymorphonuclear — (of a leukocyte) having a lobulate nucleus.
- polystyrene chips — small pieces of polystyrene used for insulating or packing
- priority check-in — Priority check-in at a hotel is an arrangement which allows a guest to check in without waiting in a line.
- psychic energizer — Pharmacology. antidepressant (def 2).
- psychoeducational — designating or of psychological methods, as intelligence tests, used in evaluating learning ability
- pythagorean scale — the major scale as derived acoustically by Pythagoras from the perfect fifth.
- quantum chemistry — the application of quantum mechanics to the study of chemical phenomena.
- respiratory chain — a series of mitochondrial proteins that transport electrons of hydrogen, released in the Krebs cycle, from acetyl coenzyme A to inhaled oxygen to form H 2 O: the energy released in the process is conserved as ATP.
- reticulate python — a python, Python reticulatus, of southeastern Asia and the East Indies, sometimes growing to a length of 32 feet (10 meters): usually considered to be the largest snake in the world.
- rocket technology — the technology of the design, operation, maintenance, and launching of rockets