12-letter words containing l, a, y, o, r
- pyramidology — a belief system based on the supposed occult significance of the Egyptian pyramids
- pyritohedral — of or relating to a pyritohedron
- pyrocatechol — catechol.
- pyrochemical — pertaining to or producing chemical change at high temperatures.
- pyromaniacal — a compulsion to set things on fire.
- pyrosulphate — any salt of pyrosulphuric acid
- radio galaxy — a galaxy that emits much more strongly in the radio part of the spectrum than does a typical galaxy.
- radiobiology — the branch of biology dealing with the effects of radiation on living matter.
- radioecology — the branch of ecology concerned with the effects of radioactivity on the environment
- radiolucency — almost entirely transparent to radiation; almost entirely invisible in x-ray photographs and under fluoroscopy.
- rally around — to bring into order again; gather and organize or inspire anew: The general rallied his scattered army.
- reality show — A reality show is a type of television program that aims to show how ordinary people behave in everyday life, or in situations, often created by the program makers, which are intended to represent everyday life.
- reasonlessly — in a reasonless manner
- reciprocally — given or felt by each toward the other; mutual: reciprocal respect.
- reflationary — economy: relating to reflation
- relationally — in a relational manner
- release copy — an article, notice, announcement, or the like, issued in advance for publication or broadcast, bearing a release date.
- rhetorically — used for, belonging to, or concerned with mere style or effect.
- rheumatology — the study and treatment of rheumatic diseases.
- rock crystal — transparent quartz, especially when colorless.
- rock wallaby — any wallaby of the genus Petrogale, having a banded or striped coat, slender body, and long legs and feet, inhabiting caves and rocky areas in Australia.
- role playing — role-play used as a method of training or education
- role-playing — a method of instruction or psychotherapy aimed at changing attitudes and behavior, in which participants act out designated roles relevant to real-life situations.
- rollaway bed — a bed on castors
- romantically — of, relating to, or of the nature of romance; characteristic or suggestive of the world of romance: a romantic adventure.
- rotary table — A rotary table is a revolving part which turns the drill string.
- rotary valve — a valve that rotates continuously or through an arc to open and close.
- roundaboutly — in a roundabout manner
- royal antler — the third prong from the base of a stag's antler.
- royal assent — (in Britain) the formal signing of an act of Parliament by the sovereign, by which it becomes law
- royal colony — a colony ruled or administered by officials appointed by and responsible to the reigning sovereign of the parent state.
- royal family — the immediate family of a reigning monarch.
- royal octavo — a book size, 61⁄4 by 10 inches
- royal pardon — release from punishment for an offence, granted by a monarch
- royal purple — a deep bluish purple.
- royal quarto — a book size, 10 by 121⁄2 inches
- royal tennis — court tennis.
- saprobiology — the branch of ecology that studies decaying organic matter or environments, especially saprophytes that derive nourishment in this way.
- sardonically — characterized by bitter or scornful derision; mocking; cynical; sneering: a sardonic grin.
- selenography — the branch of astronomy that deals with the charting of the moon's surface.
- shovel-ready — of or relating to a construction project that is ready to start immediately
- silk factory — plant where silk fabric is produced
- six-year-old — being six years in age
- snow crystal — a crystal of ice sufficiently heavy to fall from the atmosphere.
- socratically — of or relating to Socrates or his philosophy, followers, etc., or to the Socratic method.
- solar energy — energy derived from the sun in the form of solar radiation.
- solar system — the sun together with all the planets and other bodies that revolve around it.
- solitary bee — any of numerous bees, as the leaf-cutting bees, that do not live in a community.
- solway firth — an arm of the Irish Sea between SW Scotland and NW England. 38 miles (61 km) long.
- sporadically — (of similar things or occurrences) appearing or happening at irregular intervals in time; occasional: sporadic renewals of enthusiasm.