18-letter words containing c, h, e, l, m
- pyromucic aldehyde — furfural.
- quasi-metaphysical — pertaining to or of the nature of metaphysics.
- repayment schedule — a document detailing the specific terms of a borrower's loan, such as monthly payment, interest rate, due dates etc
- salem witch trials — 17th-century witchcraft case
- self-comprehending — to understand the nature or meaning of; grasp with the mind; perceive: He did not comprehend the significance of the ambassador's remark.
- sixth-form college — (in England and Wales) a college offering A-level and other courses to pupils over sixteen from local schools, esp from those that do not have sixth forms
- sling psychrometer — a psychrometer so designed that the wet-bulb thermometer can be ventilated, to expedite evaporation, by whirling in the air.
- spherical geometry — the branch of geometry that deals with figures on spherical surfaces.
- stem-cell research — research that is carried out on stem cells for use in medicine
- 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.
- survival mechanism — something you or your body does automatically, in order to survive in a dangerous or unpleasant situation
- tetrachloromethane — carbon tetrachloride.
- the black mountain — a mountain range in S Wales, in E Carmarthenshire and W Powys. Highest peak: Carmarthen Van, 802 m (2632 ft)
- the dismal science — a name for economics coined by Thomas Carlyle
- the family compact — the ruling oligarchy in Upper Canada in the early 19th century
- thermal efficiency — the ratio of the work output of a heat engine to the heat input expressed in the same units of energy.
- thermoelectrometer — an instrument for measuring a charge or voltage by means of the heat it produces in a resistance.
- thermoluminescence — phosphorescence produced by the heating of a substance.
- thermonuclear bomb — hydrogen bomb.
- vermilion rockfish — a scarlet-red rockfish, Sebastes miniatus, inhabiting waters along the Pacific coast of North America, important as a food fish.
- white-collar crime — any of various crimes, as embezzlement, fraud, or stealing office equipment, committed by business or professional people while working at their occupations.
- widemouth blindcat — any of several catfishes, as Satan eurystomus (widemouth blindcat) of Texas, that inhabit underground streams and have undeveloped eyes and unpigmented skin.
- witch hazel family — the plant family Hamamelidaceae, characterized by trees and shrubs having alternate, simple leaves, flowers in clusters or heads, and fruit in the form of a double-beaked woody capsule, and including the sweet gum, witch alder, and witch hazel.