18-letter words containing c, h, o, m, s
- southern cameroons — German Kamerun. a region in W Africa: a German protectorate 1884–1919; divided in 1919 into British and French mandates.
- spherical geometry — the branch of geometry that deals with figures on spherical surfaces.
- st john chrysostom — Saint John, a.d. 347?–407, ecumenical patriarch of Constantinople.
- stinking chamomile — mayweed.
- stockholm syndrome — an emotional attachment to a captor formed by a hostage as a result of continuous stress, dependence, and a need to cooperate for survival.
- stoichiometrically — of or relating to stoichiometry.
- stokely carmichael — Hoagland Howard [hohg-luh nd] /ˈhoʊg lənd/ (Show IPA), ("Hoagy") 1899–1981, U.S. songwriter and musician.
- stomach sweetbread — sweetbread (def 1).
- symphony orchestra — a large orchestra composed of wind, string, and percussion instruments and organized to perform symphonic compositions.
- synthetic geometry — elementary geometry, as distinct from analytic geometry.
- systematic phoneme — a phonological unit in generative phonology representing an underlying form that takes into account the relationship between phonological patterns and morphological variation, as the unit underlying the second vowel in both derive and derivative.
- the uncircumcision — the gentiles
- thermoluminescence — phosphorescence produced by the heating of a substance.
- to come unstitched — to go wrong or awry
- to cut the mustard — If someone does not cut the mustard, their work or their performance is not as good as it should be or as good as it is expected to be.
- two-chamber system — the system of having two parliamentary chambers, as the House of Lords and the House of Commons in the United Kingdom
- vermilion rockfish — a scarlet-red rockfish, Sebastes miniatus, inhabiting waters along the Pacific coast of North America, important as a food fish.
- what has become of — If you wonder what has become of someone or something, you wonder where they are and what has happened to them.
- world championship — an international competition in a particular sport or activity for people all around the world