17-letter words containing r, o, y, a, l, t
- contraflow system — a system of traffic lanes whose normal direction is reversed to allow traffic to move during repairs or an accident
- country gentleman — a rich man with an estate in the country
- courtship display — behaviour that is aimed at attracting a mate
- cryptoclimatology — See under microclimatology.
- cryptocrystalline — (of rocks) composed of crystals that can be distinguished individually only by the use of a polarizing microscope
- cryptographically — In a cryptographic manner; using cryptography; for cryptographic purposes.
- cyclooctatetraene — a colorless, flammable liquid cyclic hydrocarbon, C 8 H 8 , used in organic research.
- cypriot syllabary — a syllabic script in use on Cyprus in the first millennium b.c., used for the writing of Greek and of an unknown language.
- cytomegaloviruses — Plural form of cytomegalovirus.
- cytotrophoblastic — Relating to, or containing, cytotrophoblasts.
- dehydrochlorinate — to remove hydrogen chloride or chlorine and hydrogen from (a substance).
- delay instruction — delayed control-transfer
- dendroclimatology — The science that uses dendrochronology to reconstruct historical climate conditions.
- dephosphorylation — the removal of a phosphate group from an organic compound, as in the changing of ATP to ADP.
- dialect geography — linguistic geography
- dimethylformamide — a colourless liquid widely used as a solvent and sometimes as a catalyst. Formula: (CH3)2NCHO
- disproportionally — not in proportion; disproportionate.
- downward mobility — movement from one social level to a higher one (upward mobility) or a lower one (downward mobility) as by changing jobs or marrying.
- electricity board — a company which supplies electricity
- electrochemically — In an electrochemical manner.
- electrometallurgy — metallurgy involving the use of electric-arc furnaces, electrolysis, and other electrical operations
- electromyographic — Using electromyography.
- electron affinity — a measure of the ability of an atom or molecule to form a negative ion, expressed as the energy released when an electron is attached
- electronegativity — The tendency, or a measure of the ability, of an atom or molecule to attract electrons and thus form bonds.
- electrostatically — In an electrostatic manner, by electrostatic means.
- elementary school — primary school
- equal opportunity — policies that bar discrimination
- ethinyloestradiol — Alternative form of ethinylestradiol.
- ethnopharmacology — The scientific study correlating ethnic groups, their health, and how it relates to their physical habits and methodology in creating and using medicines.
- fellow countryman — sb of same nationality
- flash photography — photography using a momentary flash of artificial light as a source of illumination.
- floating currency — a currency that is free to fluctuate against other currencies in accordance with market forces
- floating dry dock — a dock that floats and can be lowered in the water for the entrance of a ship, and then raised for use as a dry dock
- footmen's gallery — the rearmost section of seats in the balcony of an English theater, especially in the late 17th and early 18th centuries.
- fraternal society — a club or other association, usually of men, having a limited membership and devoted to professional, religious, charitable, or social activities.
- front-line player — a regular player on a sports team or one who plays in the farthest forward position
- geothermal energy — Geothermal energy is energy from temperature differences inside the earth's crust.
- glastonbury chair — a folding chair having legs crossed front-to-back and having arms connected to the back and to the front seat rail.
- haematocrystallin — Alternative form of hematocrystallin.
- hairy-tailed mole — a blackish North American mole, Parascalops breweri, having a short, hairy tail.
- health care proxy — a legal document in which a person can appoint someone to make decisions about medical treatment in the event that he or she is no longer mentally competent or able to communicate.
- henry cabot lodge — Henry Cabot, 1850–1924, U.S. public servant and author: senator 1893–1924.
- henry of portugal — ("the Navigator") 1394–1460, prince of Portugal: sponsor of geographic explorations.
- heterochlamydeous — (of a plant) having a perianth consisting of distinct sepals and petals
- homeland security — national defence
- hydroelectrically — Using hydroelectric power.
- hydrotherapy pool — a pool of water used for hydrotherapy
- hydrothermal vent — an opening on the floor of the sea from which hot, mineral-rich solutions issue. Compare vent1 (def 2).
- hyperalimentation — overfeeding.
- hyperbolic secant — a hyperbolic function that is the reciprocal of cosh; sech