12-letter words containing c, o, a, l, n
- radiolucency — almost entirely transparent to radiation; almost entirely invisible in x-ray photographs and under fluoroscopy.
- radionuclide — a radioactive nuclide.
- reallocation — the act of allocating; apportionment.
- rear echelon — (in a military operation) the troops, officers, etc., removed from the combat zone and responsible for administration, matériel, etc.
- recognizable — to identify as something or someone previously seen, known, etc.: He had changed so much that one could scarcely recognize him.
- reconcilable — capable of being reconciled.
- reconvalesce — to convalesce again
- recreational — of or relating to recreation: recreational facilities in the park.
- renounceable — of a nature that can be renounced
- renovascular — of or relating to the blood vessels of the kidneys.
- reticulation — a reticulated formation, arrangement, or appearance; network.
- retinotectal — of or relating to the retina and the tectum
- rhinocerical — of or relating to the rhinoceros
- ribbon cable — (hardware) A type of flat multicore cable with cores positioned side-by-side, making it quick and relatively easy to clamp an Insulation Displacement Connector (IDC) across all cores. Ribbon cables typically have grey insulation with cores on a 0.050" pitch and a red stripe marking Pin 1. They are less resilient than screened, multicore cable and are usually used inside equipment where little movement or plugging and unplugging are expected. A common use is connecting a disk drive to the motherboard in a PC.
- ribonuclease — any of the class of enzymes that catalyze the hydrolysis of RNA.
- rocker panel — body paneling below the passenger compartment of a vehicle.
- rocket plane — aircraft that launches rockets
- roller chain — a power chain consisting of parallel pairs of flat links joined by pins covered with rollers, and engaging with the teeth of sprockets.
- roman a clef — a novel that represents historical events and characters under the guise of fiction.
- roman candle — a firework consisting of a tube that sends out a shower of sparks and a succession of balls of fire.
- roman collar — clerical collar.
- romantically — of, relating to, or of the nature of romance; characteristic or suggestive of the world of romance: a romantic adventure.
- roncesvalles — a village in N Spain, in the Pyrenees: defeat of part of Charlemagne's army and the death of Roland a.d.
- royal colony — a colony ruled or administered by officials appointed by and responsible to the reigning sovereign of the parent state.
- sal ammoniac — ammonium chloride.
- salification — to form into a salt, as by chemical combination.
- salmon brick — a soft, imperfectly fired brick having a reddish-orange color.
- sanctionable — authoritative permission or approval, as for an action.
- sanguicolous — living in the blood, as a parasite.
- sans-culotte — (in the French Revolution) a revolutionary of the poorer class: originally a term of contempt applied by the aristocrats but later adopted as a popular name by the revolutionaries.
- sansculottic — relating to sansculottes
- santalaceous — of, relating to, or belonging to the Santalaceae, a family of semiparasitic plants of Australia and Malaysia including sandalwood and quandong
- sardonically — characterized by bitter or scornful derision; mocking; cynical; sneering: a sardonic grin.
- saronic gulf — an inlet of the Aegean, on the SE coast of Greece, between Attica and the Peloponnesus. 50 miles (80 km) long; 30 miles (48 km) wide.
- scalding hot — that scalds; burning; too hot
- scalp lotion — A scalp lotion is a liquid medication for the treatment of scalp conditions and disorders.
- scandalously — disgraceful; shameful or shocking; improper: scandalous behavior in public.
- scapulomancy — divination of the future by observation of the cracking of a mammal's scapula that has been heated by a fire or hot instrument.
- scarlatinoid — resembling scarlatina or its eruptions.
- school prawn — a common olive-green prawn, Metapenaeus macleayi
- scintillator — a phosphor capable of producing scintillations.
- scot and lot — British History. a municipal tax assessed proportionately upon the members of a community.
- scutellation — a scutellate state or formation; a scaly covering, as on a bird's foot.
- second-class — of a secondary class or quality.
- sectionalism — excessive regard for sectional or local interests; regional or local spirit, prejudice, etc.
- sectionalize — to render sectional.
- self-command — self-control.
- semicolonial — partly colonial
- signal corps — a branch of the army responsible for military communications, meteorological studies, and related work.
- skeleton car — a freight car essentially consisting of a central longitudinal girder fastened to the trucks, sometimes supplemented by one or more pairs of cross cantilevers: used for carrying logs or containers.