10-letter words containing r, a, s, p
- maupertuis — Pierre Louis Moreau de [pyer lwee maw-roh duh] /pyɛr lwi mɔˈroʊ də/ (Show IPA), 1698–1759, French mathematician, astronomer, and biologist.
- measure up — a unit or standard of measurement: weights and measures.
- megaparsec — one million parsecs.
- megaspores — the larger of the two kinds of spores characteristically produced by seed plants and a few fern allies, developing into a female gametophyte. Compare microspore.
- metacarpus — the part of a hand or forelimb, especially of its bony structure, included between the wrist, or carpus, and the fingers, or phalanges.
- metaphrase — a literal translation.
- metaphrast — a person who translates or changes a literary work from one form to another, as prose into verse.
- misprogram — to program badly or wrongly
- monographs — Plural form of monograph.
- morse lamp — a blinker lamp for signaling in Morse code.
- most-asper — harsh; rough.
- mousetraps — Plural form of mousetrap.
- mouthparts — Plural form of mouthpart.
- muciparous — muciferous.
- muckspread — to muckrake
- nanosphere — A nanoscale sphere.
- nappy rash — If a baby has nappy rash, the skin under its nappy is red and sore.
- narcolepsy — a condition characterized by frequent and uncontrollable periods of deep sleep.
- neuroplasm — the cytoplasm of a nerve cell.
- neurospora — a genus of fast-growing orange-red fungus characterized by markings on the spores resembling axons, used widely in genetic and biochemical research
- newspapers — Plural form of newspaper.
- nomographs — Plural form of nomograph.
- nonaspirin — (of a medicine) not containing aspirin
- nonpareils — Plural form of nonpareil.
- nonparties — Plural form of nonparty.
- nonspeaker — a person who does not or cannot speak
- nosography — the systematic description of diseases.
- nulliparas — Plural form of nullipara.
- oleographs — Plural form of oleograph.
- omniparous — producing or generating all things
- operagoers — Plural form of operagoer.
- operations — Plural form of operation.
- operatives — Plural form of operative.
- opium wars — a war between Great Britain and China that began in 1839 as a conflict over the opium trade and ended in 1842 with the Chinese cession of Hong Kong to the British, the opening of five Chinese ports to foreign merchants, and the grant of other commercial and diplomatic privileges in the Treaty of Nanking.
- organ stop — a set of organ pipes allowed to sound as a group by stopping all others
- orphanages — Plural form of orphanage.
- orpharions — Plural form of orpharion.
- outsparkle — to sparkle more brilliantly than
- outspreads — Third-person singular simple present indicative form of outspread.
- overpraise — to praise excessively or unduly.
- overspread — to spread or diffuse over: A blush of embarrassment overspread his face.
- oyster cap — an edible, brownish-gray to white mushroom, Pleurotus ostreatus, that grows in clusters on fallen trees and their stumps.
- pacesetter — a person, group, or organization that is the most progressive or successful and serves as a model to be imitated.
- pack-horse — a horse used for carrying goods, freight, supplies, etc.
- paderewski — Ignace [French ee-nyas] /French iˈnyas/ (Show IPA), or Ignacy Jan [Polish ig-nah-tsi yahn] /Polish ɪgˈnɑ tsɪ yɑn/ (Show IPA), 1860–1941, Polish pianist, composer, patriot, and statesman.
- padma shri — (in India) an award for distinguished service in any field
- painstaker — a painstaking person
- paintbrush — a brush for applying paint, as one used in painting houses or one used in painting pictures.
- palaestral — relating to the palaestra
- palaverous — a conference or discussion.