18-letter words containing os
- radiation exposure — exposure to radiant energy or to the particles emitted in the transfer of radiant energy, esp the particles and gamma rays emitted in nuclear decay; exposure to radioactive substances
- raman spectroscopy — a form of spectroscopy which uses the Raman effect for studying molecules
- repossession order — If a bank or building society issues a repossession order, they officially tell someone that they are going to repossess their home.
- rosebay willowherb — a perennial onagraceous plant, Chamerion (formerly Epilobium) angustifolium, that has spikes of deep pink flowers and is widespread in open places throughout N temperate regions
- safety-deposit box — a lockable metal box or drawer, especially in a bank vault, used for safely storing valuable papers, jewelry, etc.
- salt of phosphorus — a colorless, odorless, crystalline, water-soluble solid, NaNH 4 HPO 4 ⋅4H 2 O, originally obtained from human urine: used as a blowpipe flux in testing metallic oxides.
- slobodan milosevic — Slobodan [sloh-buh-dain] /ˈsloʊ bəˌdɛən/ (Show IPA), 1941–2006, Yugoslav and Serbian politician: president of Serbia 1989–97, president of the Federal Republic of Yugoslavia 1997–2000, accused of war crimes 2001.
- sodium hyposulfite — sodium thiosulfate.
- sodium thiosulfate — a white, crystalline, water-soluble powder, Na 2 S 2 O 3 ⋅5H 2 O, used as a bleach and in photography as a fixing agent.
- special prosecutor — (formerly) an independent counsel.
- specific viscosity — a measure of the resistance to flow of a fluid, expressed as the ratio of the absolute viscosity of the fluid to that of a reference fluid (usually water in the case of liquids)
- st john chrysostom — Saint John, a.d. 347?–407, ecumenical patriarch of Constantinople.
- st. andrew's cross — a low evergreen shrub, Ascyrum hypericoides, native to temperate and subtropical America, having flowers in clusters of three: often cultivated.
- stinking goosefoot — a European goosefoot with foul-smelling leaves
- the mosque of omar — the mosque in Jerusalem, Israel, built in 691 ad by caliph 'Abd al-Malik: the third most holy place of Islam; stands on the Temple Mount alongside the al-Aqsa mosque
- theodore roosevelt — (Anna) Eleanor, 1884–1962, U.S. diplomat, author, and lecturer (wife of Franklin Delano Roosevelt).
- thiosulphuric acid — an unstable acid known only in solutions and in the form of its salts. Formula: H2S2O3
- to close the books — to balance accounts in order to prepare a statement or report
- to close your mind — If you close your mind to something, you deliberately do not think about it or pay attention to it.
- to cross your mind — If you say that an idea or possibility never crossed your mind, you mean that you did not think of it.
- to lose your nerve — If you lose your nerve, you suddenly panic and become too afraid to do something that you were about to do.
- to pick and choose — If you pick and choose, you carefully choose only things that you really want and reject the others.
- toss one's cookies — a small cake made from stiff, sweet dough rolled and sliced or dropped by spoonfuls on a large, flat pan (cookie sheet) and baked.
- toyotomi hideyoshi — Toyotomi [taw-yaw-taw-mee] /ˈtɔ yɔˈtɔ mi/ (Show IPA), 1536–98, Japanese general and statesman: prime minister and dictator of Japan 1585–98.
- triphosphoric acid — the hypothetical acid H 5 P 3 O 10 , known chiefly by its salts.
- tufted loosestrife — a primulaceous plant Naumburgia thyrsiflora
- turn up one's nose — to behave disdainfully towards (something)
- vosges (mountains) — mountain range in NE France, west of the Rhine: highest peak, c. 4,700 ft (1,433 m)