17-letter words containing g, y, p
- hippocampal gyrus — a convolution on the inner surface of the temporal lobe of the cerebrum, bordering the hippocampus.
- 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
- hydrogen peroxide — a colorless, unstable, oily liquid, H 2 O 2 , an aqueous solution of which is used chiefly as an antiseptic and a bleaching agent.
- hydrogen sulphide — Chemistry
- hyper-intelligent — having good understanding or a high mental capacity; quick to comprehend, as persons or animals: an intelligent student.
- hyperpigmentation — coloration, especially of the skin.
- hypoglossal nerve — either one of the twelfth pair of cranial nerves, consisting of motor fibers that innervate the muscles of the tongue.
- hypophrygian mode — a plagal church mode represented on the white keys of a keyboard instrument by an ascending scale from B to B, with the final on E.
- i beg your pardon — You say 'Pardon?' or 'I beg your pardon?' or, in American English, 'Pardon me?' when you want someone to repeat what they have just said because you have not heard or understood it.
- laryngopharyngeal — of, relating to, or involving the larynx and pharynx.
- lexicographically — the writing, editing, or compiling of dictionaries.
- literacy campaign — a campaign designed to reduce illiteracy and promote literacy in a country, area, etc
- lithostratigraphy — the study or character of stratified rocks based solely on their physical and petrographic features.
- lymphangiographic — Relating to lymphangiography.
- malagasy republic — former name of Madagascar.
- malay archipelago — an extensive island group in the Indian and Pacific oceans, SE of Asia, including the Greater and Lesser Sunda Islands, the Moluccas, and the Philippines.
- melissopalynology — The study of honey and its composition.
- mercury poisoning — illness caused by exposure to mercury
- methylidyne group — the trivalent group ≡CH.
- micropaleontology — the branch of paleontology dealing with the study of microscopic fossils.
- midmorning prayer — the third of the seven canonical hours; terce
- 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
- neuropharmacology — the branch of pharmacology concerned with the effects of drugs on the nervous system.
- neurophysiologist — the branch of physiology dealing with the functions of the nervous system.
- neuropsychologist — A neurologist or psychologist whose speciality is neuropsychology.
- oceanographically — In terms of oceanography.
- organic psychosis — a severe mental illness produced by damage to the brain, as a result of poisoning, alcoholism, disease, etc
- packaging company — a company that packages goods on behalf of the producer
- palaeoarchaeology — the branch of archaeology concerned with the earliest fossil remains
- palaeoclimatology — the study of climates of the geological past
- 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.
- paralysis agitans — Parkinson's disease
- parathyroid gland — any of several small oval glands usually lying near or embedded in the thyroid gland.
- partially sighted — unable to see properly so that even with corrective aids normal activities are prevented or seriously hindered
- pastoral theology — the branch of theology dealing with the responsibilities of members of the clergy to the people under their care.
- paymaster general — a government minister responsible for making payments by government departments
- petty bourgeoisie — the section of the middle class with the lowest social status, generally composed of shopkeepers, lower clerical staff, etc
- 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
- pharmacologically — the science dealing with the preparation, uses, and especially the effects of drugs.
- photofluorography — photography of images produced by a fluoroscopic examination, used in x-ray examination of the lungs of large groups of people.
- physical training — fitness coaching
- pile on the agony — to exaggerate one's distress for sympathy or greater effect
- play along (with) — to join in or cooperate (with)
- popular etymology — folk etymology.
- positive theology — a theological approach or tradition in which the nature of God is thought to be knowable and is understood through positive statements. See also cataphasis (def 2).
- powder metallurgy — the art or science of manufacturing useful articles by compacting metal and other powders in a die, followed by sintering.
- predatory pricing — If a company practises predatory pricing, it charges a much lower price for its products or services than its competitors in order to force them out of the market.
- prelingually deaf — deaf from birth or having acquired deafness before learning to speak