19-letter words containing h, a, l, o
- cyclohexadienedione — (organic chemistry) benzoquinone.
- dancing-lady orchid — any of numerous epiphytic orchids of the genus Oncidium, often grown as houseplants.
- death of a salesman — a play (1949) by Arthur Miller.
- dendrochronological — Pertaining to dendrochronology.
- devil's coach-horse — a large black rove beetle, Ocypus olens, with large jaws and ferocious habits
- devils-on-horseback — a savoury of prunes wrapped in bacon slices and served on toast
- diethylaminoethanol — a colorless, hygroscopic, water-soluble liquid, C 6 H 15 NO, used for the synthesis of local anesthetics, in antirust compounds, and in photographic emulsions.
- digital photography — the taking or manipulation of photographs that are stored as data files on a computer.
- dimethylnitrosamine — a yellow, water-soluble carcinogenic liquid, C 2 H 6 N 2 O, found in tobacco smoke and certain foods: known to be a potent carcinogen. Abbreviation: DMN, DMNA.
- direct grant school — (in Britain, formerly) a school financed by endowment, fees, and a state grant conditional upon admittance of a percentage of nonpaying pupils nominated by the local education authority
- displaced homemaker — a woman recently divorced, separated, or widowed after many years as a homemaker.
- diversional therapy — the structured use of leisure time in recreation and play as a form of or supplement to conventional therapy
- dominant wavelength — the wavelength of monochromatic light that would give the same visual sensation if combined in a suitable proportion with an achromatic light
- don't make me laugh — Some people reply to other people's comments or opinions by saying 'Don't make me laugh' when they disagree with them and think they are foolish or inaccurate.
- double-helical gear — herringbone gear.
- draw the color line — to impose or accept the color line
- drink the health of — to salute or celebrate with a toast
- dry-bulk cargo ship — a ship that carries an unpackaged dry cargo such as coal or grain; bulk carrier
- early purple orchid — a Eurasian orchid, Orchis mascula, with purplish-crimson flowers and stems marked with blackish-purple spots
- eat someone's lunch — to take into the mouth and swallow for nourishment; chew and swallow (food).
- echoencephalography — a device that employs reflected ultrasonic waves to examine the position of brain structures.
- electro-shock baton — a baton used as a weapon to pass an electric current through part of the body
- electrocardiographs — Plural form of electrocardiograph.
- electrocardiography — The measurement of electrical activity in the heart and the recording of such activity as a visual trace (on paper or on an oscilloscope screen), using electrodes placed on the skin of the limbs and chest.
- electrohydrodynamic — (physics) Of or pertaining to electrohydrodynamics.
- electromechanically — In an electromechanical way.
- electron micrograph — a photograph or image of a specimen taken using an electron microscope
- electronic graphics — (on television) the production of graphic designs and text by electronic means
- electropalatography — the study of the movements of the tongue during speech using touch-sensitive electrodes in the mouth linked to a computer
- electrophoretically — By means of electrophoresis.
- electrophotographic — Of or pertaining to electrophotography.
- electrotherapeutics — (medicine) the use of electricity in therapeutics.
- enabling technology — technology that enables the user to perform a task or to improve his or her overall performance: e.g. the internet
- english toy spaniel — breed of dog
- equatorial zenithal — a type of map projection in which part of the earth's surface is projected onto a plane tangential to it at the equator
- 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
- exhibitionistically — In an exhibitionistic manner.
- 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
- fall in love (with) — to begin to feel love (for)
- five o'clock shadow — the rather dark stubble that appears on a man's face some hours after shaving, typically in the late afternoon if he shaved in the morning.
- five-o'clock shadow — the rather dark stubble that appears on a man's face some hours after shaving, typically in the late afternoon if he shaved in the morning.
- 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.
- fluophosphoric acid — fluorophosphoric acid.
- fluoride toothpaste — toothpaste containing a small amount of fluoride as protection against tooth decay
- focal plane shutter — an opaque shield in a camera, lying in the focal plane of the lens, that, when tripped, admits light to expose the film or plate for a predetermined period, usually a fraction of a second
- focal-plane shutter — a camera shutter situated directly in front of the film.