15-letter words containing r, o, s
- chanson d'amour — love song.
- charles coulomb — Charles Augustin de [sharl oh-gy-stan duh] /ʃarl oʊ güˈstɛ̃ də/ (Show IPA), 1736–1806, French physicist and inventor.
- charles doughty — Charles Montagu [mon-tuh-gyoo] /ˈmɒn təˌgyu/ (Show IPA), 1843–1926, English traveler and writer.
- charles simonyi — (person) Microsoft programmer, most famously responsible for Hungarian Notation. Simonyi was born in Budapest in 1948, and for more than a decade was senior programmer at Microsoft in Redmond.
- charleston peak — a mountain in SE Nevada: highest peak in the Spring Mountains. 11,919 feet (3635 meters).
- charlotte russe — a cold dessert made in a mould with sponge fingers enclosing a mixture of whipped cream, custard, etc
- charlottesville — city in central Va.: pop. 45,000
- charm offensive — If you say that someone has launched a charm offensive, you disapprove of the fact that they are being very friendly to their opponents or people who are causing problems for them.
- chelsea tractor — a four-by-four
- chemoautotrophs — Plural form of chemoautotroph.
- chemopsychiatry — the study and application of chemical substances in psychiatry
- chemosterilants — Plural form of chemosterilant.
- chest protector — a protective pad worn over the chest by a catcher or umpire to shield the body from foul tips.
- chicken lobster — a young lobster weighing 1 pound (0.4 kg) or less.
- chief inspector — an officer of high rank in British police forces
- children's home — care institution for minors
- children's hour — a play (1934) by Lillian Hellman.
- chinless wonder — a person, esp an upper-class one, lacking strength of character
- cholesterolemia — the presence of an abnormal amount of cholesterol in the blood.
- chondrosarcomas — Plural form of chondrosarcoma.
- chondroskeleton — the cartilaginous part of the skeleton of vertebrates
- choral speaking — recitation of poetry, dramatic pieces, etc. by a chorus of speakers
- chorioallantois — the membrane of a fetus that is formed by the merging of the allantois and the chorion
- chorioretinitis — (medicine) An inflammation of the choroid and retina of the eye.
- christcross-row — the alphabet.
- christmas carol — a joyful hymn or religious song, celebrating the birth of Christ
- chromatic scale — a twelve-note scale including all the semitones of the octave
- chromosome band — any of the transverse bands that appear on a chromosome after staining. The banding pattern is unique to each type of chromosome, allowing characterization
- chronic disease — long-term illness
- chronobiologist — A person who is involved in chronobiology.
- chudskoye ozero — Russian name of Peipus.
- church slavonic — Old Church Slavonic, esp as preserved in the liturgical use of the Orthodox church
- cigarette smoke — the acrid smoke produced by cigarettes being smoked
- ciliary process — one of the folds on the ciliary body, connected with the suspensory ligament of the crystalline lens.
- circularisation — Alternative spelling of circularization.
- circumambagious — in a round-about manner
- circumforaneous — moving around or abroad; roaming from place to place
- circumincession — the reciprocal existence within the three members of the Trinity
- circumlocutions — Plural form of circumlocution.
- circumlocutious — Circumlocutional.
- circumscription — the act of circumscribing or the state of being circumscribed
- circumvolutions — Plural form of circumvolution.
- city of bristol — a port and industrial city in SW England, mainly in Bristol unitary authority, on the River Avon seven miles from its mouth on the Bristol Channel: a major port, trading with America, in the 17th and 18th centuries; the modern port consists chiefly of docks at Avonmouth and Portishead; noted for the Clifton Suspension Bridge (designed by I. K. Brunel, 1834) over the Avon gorge; Bristol university (1909) and University of the West of England (1992). Pop: 420 556 (2001)
- clare of assisi — Saint. 1194–1253, Italian nun; founder of the Franciscan Order of Poor Clares. Feast day: Aug 11
- claustrophobics — Plural form of claustrophobic.
- cleptoparasites — Plural form of cleptoparasite.
- cloak-and-sword — (of a drama or work of fiction) dealing with characters who wear cloaks and swords; concerned with the customs and romance of the nobility in bygone times.
- closed fracture — simple fracture.
- closed interval — an interval on the real line including its end points, as [0, 1], the set of reals between and including 0 and 1
- closed traverse — a traverse ending at its point of origin.