15-letter words containing c, h, l, o
- dichloromethane — a noxious colourless liquid widely used as a solvent, e.g. in paint strippers. Formula: CH2Cl2
- dichroic filter — an optical colour filter operating on the principle of wave interference between closely spaced reflecting surfaces, rather than by colour absorption
- dishcloth gourd — loofah (def 1).
- divinity school — a Protestant seminary.
- doctoral thesis — a thesis written as part of a doctorate
- dolichocephalic — long-headed; having a cephalic index of 75 and under.
- double-declutch — to change to a lower gear in a motor vehicle by first placing the gear lever into the neutral position before engaging the desired gear, at the same time releasing the clutch pedal and increasing the engine speed
- drying-up cloth — a tea towel
- electrochemical — (chemistry) of, or relating to a chemical reaction brought about by electricity.
- electromyograph — A device used in electromyography to generate electromyograms.
- electrophoreses — Plural form of electrophoresis.
- electrophoresis — The movement of charged particles in a fluid or gel under the influence of an electric field.
- electrophoretic — Of, pertaining to, or produced by electrophoresis.
- electrorheology — the study of the flow of fluids under the influence of electric fields
- electrothermics — the study of electricity and heat, or of electrically generated heat
- eleutherococcus — a shrub, Eleutherococcus senticosus, which is found in Siberia and which is used in herbal medicine. It supposedly increases stamina and boosts the immune system
- eleutherodactyl — (of a bird) having the hind toe free
- eleutheromaniac — Having a passionate mania for freedom.
- eleutherophobic — afraid of freedom
- encephalization — (biology) the amount of brain mass exceeding that related to an animal's total body mass.
- encephalography — Any of various techniques for recording the structure or electrical activity of the brain.
- encephalopathic — Relating to encephalopathy.
- endomycorrhizal — Of or pertaining to endomycorrhiza.
- epichlorohydrin — an organic compound used as a solvent in resin-making
- ethnolinguistic — Of or pertaining to ethnolinguistics.
- ethnomusicology — The study of the music of different cultures, especially non-Western ones.
- ethnopsychology — The scientific study of psychological concepts as they exist across different ethnic groups.
- ethyl cellulose — an ethyl ether of cellulose obtained as a white granular solid by treating wood pulp soaked in sodium hydroxide (alkali cellulose) with ethyl chloride: used in adhesives, plastics, insulation, etc.
- ethylene glycol — a colorless, viscous liquid, HOCH2CH2OH, used as an antifreeze, as a solvent, in resins, etc.
- fahnestock clip — a type of terminal using a spring that clamps readily onto a connecting wire.
- false buckthorn — a spiny shrub or small tree, Bumelia lanuginosa, of the sapodilla family, native to the southern U.S., having gummy, milky sap and white, bell-shaped flowers and yielding a hard, light-brown wood.
- ferric chloride — a compound that in its anhydrous form, FeCl 3 , occurs as a black-brown, water-soluble solid; in its hydrated form, FeCl 3 ⋅xH 2 O, it occurs in orange-yellow, deliquescent crystals: used chiefly in engraving, for deodorizing sewage, as a mordant, and in medicine as an astringent and styptic.
- fifth columnist — A fifth columnist is someone who secretly supports and helps the enemies of the country or organization they are in.
- flavor enhancer — a substance added to food in order to enhance or intensify its flavor: Salt is a common flavor enhancer.
- flight of fancy — An idea or statement that is very imaginative but complicated, silly, or impractical can be referred to as a flight of fancy.
- flight recorder — an electronic device aboard an aircraft that automatically records some aspects of the aircraft's performance in flight.
- floating charge — an unsecured charge on the assets of an enterprise that allows such assets to be used commercially until the enterprise ceases to operate or the creditor intervenes to demand collateral
- fluorochemicals — Plural form of fluorochemical.
- fly honeysuckle — either of two honeysuckle shrubs, Lonicera canadensis, of eastern North America, or L. xylosteum, of Eurasia, having paired yellowish flowers tinged with red.
- food technology — a branch of technology that is involved in the production of food
- forecastle head — the extreme fore part of a forecastle superstructure.
- forward echelon — (in a military operation) the troops and officers in a combat zone or in a position to engage the enemy.
- four-ball match — a match, scored by holes, between two pairs of players, in which the four players tee off and the partners alternate in hitting the pair's ball having the better lie off the tee.
- fourth official — In football, the fourth official is an official who assists the referee and assistant referees from the side of the pitch.
- fourth republic — the republic established in France in 1945 and replaced by the Fifth Republic in 1958.
- french marigold — a composite plant, Tagetes patula, of Mexico, having yellow flowers with red markings.
- french togoland — a former United Nations Trust Territory in W Africa, administered by France (1946–60), now the independent republic of Togo
- friction clutch — a clutch in which one part turns another by friction between them.
- fusospirochetal — Relating to fusospirochetes.
- gene technology — manipulation of DNA