13-letter words containing i, r, o, n, s, m
- rhodesian man — an extinct Pleistocene human whose cranial remains were found at Kabwe, in Zambia: formerly in some classifications Homo rhodesiensis but now considered archaic Homo sapiens.
- ribosomal rna — a type of RNA, distinguished by its length and abundance, functioning in protein synthesis as a component of ribosomes. Abbreviation: rRNA.
- romanticising — to make romantic; invest with a romantic character: Many people romanticize the role of an editor.
- rooming house — a house with furnished rooms to rent; lodging house.
- rose geranium — a geranium, Pelargonium graveolens, cultivated for its fragrant, lobed or narrowly divided leaves.
- rose mandarin — (in the Chinese Empire) a member of any of the nine ranks of public officials, each distinguished by a particular kind of button worn on the cap.
- royal marines — a corps of soldiers specially trained in amphibious warfare
- sanction mark — a mark on pieces of 19th-century French furniture signifying that the piece met the quality standards required by the Parisian guild of ebonists
- scout uniform — the uniform worn by the Scouts
- second empire — the empire established in France (1852–70) by Louis Napoleon: the successor to the Second Republic.
- selenotropism — growth in response to moonlight.
- semicarbazone — a product that occurs as a result of aldehyde or ketone reacting with semicarbazide
- semiconductor — a substance, as silicon or germanium, with electrical conductivity intermediate between that of an insulator and a conductor: a basic component of various kinds of electronic circuit element (semiconductor device) used in communications, control, and detection technology and in computers.
- seminole wars — a series of conflicts in 1818–19 between American forces under Andrew Jackson and the Seminole Indians in Spanish-controlled eastern Florida.
- semiporcelain — any of several vitrified ceramic wares lacking the translucency or hardness of true porcelain but otherwise similar to it.
- senior airman — a noncommissioned officer ranking between a staff sergeant and airman first class. Abbreviation: SrA.
- senior master — a male teacher in a senior position
- senior moment — a brief lapse in memory or a moment of confusion, especially in an older person.
- sensitometric — of or relating to sensitometry
- sex chromatin — Barr body.
- shipping room — a place in a business concern where goods are packed and shipped.
- shop chairman — a unionized employee elected to represent a shop, department, or the like, in dealings with an employer.
- sierra morena — a mountain range in SW Spain, between the Guadiana and Guadalquivir Rivers. Highest peak: Estrella, 1299 m (4262 ft)
- silver salmon — coho salmon.
- simon bolivar — Simón [sahy-muh n;; Spanish see-mawn] /ˈsaɪ mən;; Spanish siˈmɔn/ (Show IPA), ("El Libertador") 1783–1830, Venezuelan statesman: leader of revolt of South American colonies against Spanish rule.
- single mother — a mother who brings up a child or children alone, without a partner.
- sociocentrism — oriented toward or focused on one's own social group.
- spanish broom — a spiny, often leafless shrub, Genista hispanica, of the legume family, native to southern Europe, having clustered, golden-yellow flowers and hairy pods.
- spermatogenic — relating to the development of spermatozoa
- spermatotoxin — spermotoxin.
- spider monkey — any of several tropical American monkeys of the genus Ateles, having a slender body, long, slender limbs, and a long, prehensile tail: some are endangered.
- sportsmanlike — a man who engages in sports, especially in some open-air sport, as hunting, fishing, racing, etc.
- sportsmanship — the character, practice, or skill of a sportsman.
- stain remover — a substance designed for removing stains or dirty marks, as from clothes, carpets, etc
- staminiferous — bearing or having a stamen or stamens.
- standing room — space in which to stand, as in a theater, stadium, or the like.
- stationmaster — a person in charge of a railroad station; station agent.
- storm warning — a showing of storm signals.
- strong-minded — having a forceful and independent mind.
- subcinctorium — an embroidered silk vestment resembling, but somewhat broader than, a maniple, worn by the pope on solemn occasions.
- subprime loan — A subprime loan is a loan with a higher interest rate, to borrowers who are a high credit risk.
- succinctorium — subcinctorium.
- summarization — to make a summary of; state or express in a concise form.
- superdominant — submediant.
- superorganism — a form of life composed of mutually interdependent parts that maintain various vital processes.
- superromantic — exceptionally romantic
- syringomyelia — a disease of the spinal cord in which the nerve tissue is replaced by a cavity filled with fluid.
- tautochronism — the fact or quality of being a tautochrone
- temporariness — lasting, existing, serving, or effective for a time only; not permanent: a temporary need; a temporary job.
- terminal post — A terminal post is the terminal on a battery to which the battery lead is attached.