13-letter words containing f, r, c, o
- reflectograph — a type of mechanical instrument used for communication with spirits or the dead
- reflectometer — a device for measuring reflectance.
- reflectometry — the study or science of reflectometer usage and design
- reflex-action — Physiology. noting or pertaining to an involuntary response to a stimulus, the nerve impulse from a receptor being transmitted inward to a nerve center that in turn transmits it outward to an effector.
- refocillation — the restoring of strength by refreshment or revivement
- reform school — reformatory (def 2).
- refractometer — an instrument for determining the refractive index of a substance.
- refractometry — an instrument for determining the refractive index of a substance.
- reinforceable — capable of being reinforced
- reinforcement — the act of reinforcing.
- reperformance — a musical, dramatic, or other entertainment presented before an audience.
- reproachfully — full of or expressing reproach or censure: a reproachful look.
- resource fork — Macintosh file system
- retroflection — a bending backward.
- reunification — the process of unifying or uniting; union: the unification of the 13 original colonies.
- rhesus factor — Rh factor.
- rock-fill dam — a dam built mainly of rocks of various sizes fitted compactly together.
- role conflict — emotional conflict arising when competing demands are made on an individual in the fulfillment of his or her multiple social roles.
- rose of china — China rose (def 2).
- russification — Russianize (defs 1, 2).
- safety factor — the ratio of the maximum stress that a structural part or other piece of material can withstand to the maximum stress estimated for it in the use for which it is designed.
- san francisco — a seaport in W California, on San Francisco Bay: earthquake and fire 1906; United Nations Conference 1945.
- sao francisco — a river flowing NE and E through E Brazil into the Atlantic. 1800 miles (2900 km) long.
- scalariformly — in a scalariform or ladder-like manner
- scalpelliform — having the shape of a scalpel blade
- scarfed joint — a lapped joint between two pieces of timber made by notching or grooving the ends and strapping, bolting, or gluing the two pieces together
- scarification — an act or instance of scarifying.
- school figure — (in ice skating) any one of a group of sixty-nine different figures, skated in two- or three-circle figure-eight patterns, used to test various skating movements, a skater usually being required to perform six selected ones in competition.
- school friend — A school friend is a friend of yours who is at the same school as you, or who used to be at the same school when you were children.
- scimitar foot — any short leg or foot, as to a pedestal table, having the form of an arc tangent to the floor plane.
- scorification — an assaying process whereby gold or silver is separated from ore by fusion with lead.
- scorpion fish — any of several tropical and temperate marine scorpaenid fishes, especially members of the genus Scorpaena, many having venomous dorsal spines.
- scout uniform — the uniform worn by the Scouts
- screwworm fly — the adult screwworm.
- second of arc — second2 (def 4).
- self-coloured — of one color.
- self-creation — the act of producing or causing to exist; the act of creating; engendering.
- self-procured — to obtain or get by care, effort, or the use of special means: to procure evidence.
- self-produced — produced by oneself or itself.
- self-reproach — blame or censure by one's own conscience.
- shaft encoder — A shaft encoder is a sensor for measuring how fast a shaft rotates.
- sheriff court — (in Scotland) a court having jurisdiction to try summarily or on indictment all but the most serious crimes and to deal with most civil actions
- significatory — serving to signify
- simplificator — a person who simplifies matters
- skin friction — the friction acting on a solid body when it is moving through a fluid
- soft currency — econ: fluctuating value
- solar furnace — a furnace using sunlight concentrated by concave mirrors as the direct source of heat.
- south african — of southern Africa.
- spadicifloral — having flowers borne on a spadix
- special offer — bargain