13-letter words containing r, h, e, y
- mass hysteria — a condition affecting a group of persons, characterized by excitement or anxiety, irrational behavior or beliefs, or inexplicable symptoms of illness.
- merchant navy — commercial ships
- merrythoughts — Plural form of merrythought.
- metallography — the study of the structure of metals and alloys by means of microscopy.
- metaphoricity — The power of a metaphor.
- methoxy group — the univalent group CH 3 O−.
- methylmercury — any of several extremely toxic organometallic compounds, Hg(CH 3) 2 , formed from metallic mercury by the action of microorganisms and capable of entering the food chain: used as seed disinfectants.
- methylparaben — a fine, white, needlelike substance, C 8 H 8 O 3 , used chiefly as a preservative in foods and pharmaceuticals.
- methylpropane — (organic compound) isobutane.
- methylpropene — (organic compound) IUPAC name for isobutylene.
- molly pitcher — Molly (Mary Ludwig Hays McCauley) 1754–1832, American Revolutionary heroine.
- money-changer — a person whose business is the exchange of currency, usually of different countries, at a fixed or official rate.
- moneychangers — Plural form of moneychanger.
- monkey orchid — a European orchid, Orchis simia, rare in Britain, having a short dense flower spike that opens from the top downwards. The flowers are white streaked with pink or violet and have five spurs thought to resemble a monkey's arms, legs, and tail
- monkey wrench — spanner
- monkey-wrench — to ruin (plans, a schedule, etc.) unavoidably or, sometimes, deliberately: The storm monkey-wrenched our plans for a picnic.
- morphemically — By means of, or in terms, of morphemes.
- musicotherapy — the treatment of mental disorders with music
- myrmecophiles — Plural form of myrmecophile.
- mythographies — Plural form of mythography.
- nanochemistry — (chemistry) The synthesis, analysis and characterization of chemical compounds at the nanoscale.
- nasopharynges — Plural form of nasopharynx.
- nearsightedly — In a nearsighted manner; as if nearsighted; myopically.
- neo-orthodoxy — a movement in Protestant theology, beginning after World War I, stressing the absolute sovereignty of God and chiefly characterized by a reaction against liberal theology and a reaffirmation of certain doctrines of the Reformation.
- neuroethology — the study of the role of the nervous system in animal behaviour
- neurosyphilis — Syphilis that involves the central nervous system.
- night journey — the journey in which Muhammad was carried from Mecca to Jerusalem and ascended into heaven.
- ninety-fourth — next after the ninety-third; being the ordinal number for 94.
- nonhereditary — passing, or capable of passing, naturally from parent to offspring through the genes: Blue eyes are hereditary in our family. Compare congenital.
- nonhysterical — not hysterical or funny
- norethynodrel — a progestin, C 2 0 H 2 6 O 2 , used in combination with an estrogen in some oral contraceptives.
- north by east — a point on the compass 11°15′ east of north. Abbreviation: NbE.
- north by west — a point on the compass 11°15′ west of north. Abbreviation: NbW.
- northeasterly — of or located in the northeast.
- northwesterly — Situated in, or pointing to, the northwest.
- nosogeography — the study of the geographical causes and distribution of diseases.
- number theory — the study of integers and their relation to one another.
- nursery rhyme — a short, simple poem or song for very young children, as Hickory Dickory Dock.
- on every hand — on all sides; in all directions
- onychorrhexis — (pathology) fingernail and toenail brittleness and breakage, such as may be due to excessive strong soap and water exposure, nail polish remover, hypothyroidism, anemia, anorexia nervosa or bulimia, or after oral retinoid therapy.
- openheartedly — Alt form open-heartedly.
- orange roughy — a marine food fish, Hoplosthenus atlanticus, of S Pacific waters
- orchesography — a written study of dancing
- organotherapy — the branch of therapeutics that deals with the use of remedies prepared from the organs of animals, as from the thyroid gland, the pancreas, or the suprarenal bodies.
- oropharyngeal — the part of the pharynx between the soft palate and the upper edge of the epiglottis.
- orthoepically — In terms of correct pronunciation.
- orthohydrogen — the form of molecular hydrogen in which the nuclei of the two hydrogen atoms contained in the molecule have spins in the same direction.
- orthopyroxene — a member of the pyroxene group of minerals having an orthorhombic crystal structure, such as enstatite and hypersthene
- oxford theory — the theory attributing the authorship of Shakespeare's plays to Edward de Vere, Earl of Oxford, 1550–1604.
- oystercatcher — any of several long-billed wading birds of the genus Haematopus that have chiefly black-and-white plumage and that feed on oysters, clams, mussels, etc.