17-letter words containing e, a, g, l, r
- naked singularity — an infinitely dense point mass without a surrounding black hole
- national heritage — country's cultural legacy
- negative particle — a word that indicates negativity, for example 'not' in English or 'ne pas' in French
- negative polarity — the grammatical character of a word or phrase, such as ever or any, that may normally be used only in a semantically or syntactically negative or interrogative context
- nessler's reagent — an aqueous solution of potassium iodide, mercuric chloride, and potassium hydroxide, used as a test for the presence of ammonia.
- neurobiologically — In terms of or by means of neurobiology.
- neuropathological — (medicine) Of, pertaining to, or arising from neuropathology, the pathology of nerve tissue.
- neuropharmacology — the branch of pharmacology concerned with the effects of drugs on the nervous system.
- new age traveller — New Age travellers are people who live in tents and vehicles and travel from place to place, and who reject many of the values of modern society.
- new england aster — a tall composite plant, Aster novae-angliae, of the northeastern U.S., the flowers of which have lavender to deep-purple rays.
- new england range — a plateau in New South Wales in SE Australia, in the Great Dividing Range, rising to 5000 feet (1524 meters).
- non-biodegradable — capable of decaying through the action of living organisms: biodegradable paper; biodegradable detergent.
- not lift a finger — any of the terminal members of the hand, especially one other than the thumb.
- oceanographically — In terms of oceanography.
- old age pensioner — An old age pensioner is a person who is old enough to receive an pension from their employer or the government.
- orange flower oil — neroli oil.
- oregon crab apple — a shrub or small tree, Malus fusca, of the rose family, of the northwestern coast of North America, having hairy leaves, white flowers, and yellow or green oblong fruit.
- organized militia — a former military organization functioning under both state and federal authority.
- osculating circle — circle of curvature.
- outline agreement — a contract, etc, setting out the preliminary terms or guidelines for an agreement; a preliminary agreement
- overhead lighting — lighting which throws light downwards by being situated on the ceiling or having a downward shade, etc
- painted greenling — a greenling, Oxylebius pictus, inhabiting the Pacific coastal waters of North America, having a whitish body marked with black bands.
- palaeoarchaeology — the branch of archaeology concerned with the earliest fossil remains
- paleoanthropology — the study of the origins and predecessors of the present human species, using fossils and other remains.
- paleobiogeography — the study of the distribution of ancient plants and animals and their relation to ancient geographic features.
- parallelogram law — Mathematics, Physics. a rule for adding two vectors, as forces (parallelogram of forces) by placing the point of application of one at the point of origin of the other and obtaining their sum by constructing the line connecting the two remaining end points, the sum being the diagonal of the parallelogram whose adjacent sides are the two vectors.
- partially sighted — unable to see properly so that even with corrective aids normal activities are prevented or seriously hindered
- pascal's triangle — a triangular arrangement of the binomial coefficients of the expansion (x + y) n for positive integral values of n.
- pastoral theology — the branch of theology dealing with the responsibilities of members of the clergy to the people under their care.
- pauline privilege — (in canon law) the privilege given to converts to dissolve a marriage with an unbaptized spouse if either obstructs the religious practices of the other.
- paymaster general — a government minister responsible for making payments by government departments
- personnel manager — head of Human Resources department
- phonological rule — an operation in generative phonology that substitutes one sound or class of sounds for another in a phonological derivation.
- pillion passenger — a person who travels in a seat or place behind the rider of a motorcycle, scooter, horse, etc
- plug and feathers — an apparatus for splitting stone, consisting of two tapered bars (feathers) inserted into a hole drilled into the stone, between which a narrow wedge (plug) is hammered to spread them.
- polarizing filter — a camera lens filter used to control the plane of polarization of light entering the lens.
- political refugee — a person who has fled from a homeland because of political persecution.
- popular etymology — folk etymology.
- portfolio manager — a person employed by others to make investments for them
- postural drainage — a therapy for clearing congested lungs by placing the patient in a position for drainage by gravity, often accompanied by percussion with hollowed hands.
- powder metallurgy — the art or science of manufacturing useful articles by compacting metal and other powders in a die, followed by sintering.
- pre-technological — of or relating to technology; relating to science and industry.
- prelingually deaf — deaf from birth or having acquired deafness before learning to speak
- programme planner — someone who creates plans or schedules in regards to their line of work or occupation
- prolonged-release — A prolonged-release drug delivers a dose of a medication over an extended period of time.
- pseudepigraphical — certain writings (other than the canonical books and the Apocrypha) professing to be Biblical in character.
- purple granadilla — the edible fruit of any of several species of passionflower, especially Passiflora edulis (purple granadilla) or P. quadrangularis (giant granadilla)
- pyroligneous acid — a yellowish, acidic, water-soluble liquid, containing about 10 percent acetic acid, obtained by the destructive distillation of wood: used for smoking meats.
- pythagorean scale — the major scale as derived acoustically by Pythagoras from the perfect fifth.
- rat-tailed maggot — the aquatic larva of any of several syrphid flies of the genus Eristalis, that breathes through a long, thin tube at the posterior end of its body.