19-letter words containing f, l, u, o, r, c
- reciprocity failure — a failure of the two exposure variables, light intensity and exposure time, to behave in a reciprocal fashion at very high or very low values
- republic of ireland — John, 1838–1918, U.S. Roman Catholic clergyman and social reformer, born in Ireland: archbishop of St. Paul, Minn., 1888–1918.
- republic of letters — the collective body of literary people.
- republic of vietnam — the name (from 1955–75) for South Vietnam, as an independent republic, following the division of the country in 1954 into North Vietnam and South Vietnam
- reticular formation — a network of neurons in the brainstem involved in consciousness, regulation of breathing, the transmission of sensory stimuli to higher brain centers, and the constantly shifting muscular activity that supports the body against gravity.
- ruffini's corpuscle — an end organ of certain sensory neurons that branches out parallel to the skin and responds to steady pressure.
- self-congratulating — the expression or feeling of uncritical satisfaction with oneself or one's own accomplishment, good fortune, etc.; complacency.
- self-congratulation — the expression or feeling of uncritical satisfaction with oneself or one's own accomplishment, good fortune, etc.; complacency.
- self-congratulatory — the expression or feeling of uncritical satisfaction with oneself or one's own accomplishment, good fortune, etc.; complacency.
- self-reconstruction — an act of reconstructing.
- sharp-focus realism — photorealism.
- specular reflection — Specular reflection is reflection of heat or light in which the angles of different parts of the surface are important.
- sphere of influence — any area in which one nation wields dominant power over another or others.
- to come full circle — If you say that you have come full circle or have turned full circle, you mean that after a long series of events or changes the same situation that you started with still exists.
- traffic regulations — rules designed to expedite the flow of traffic and prevent collisions
- with flying colours — If you pass a test with flying colours, you have done very well in the test.