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14-letter words containing d, e, f, l

  • delta function — a generalized function having the value 0 except at 0, the value infinity at 0, and an integral from minus infinity to plus infinity of 1, used in thermodynamics and quantum mechanics.
  • depth of field — the range of distance in front of and behind an object focused by an optical instrument, such as a camera or microscope, within which other objects will also appear clear and sharply defined in the resulting image
  • despitefulness — The state or quality of being despiteful.
  • differentiable — capable of being differentiated.
  • differentially — of or relating to difference or diversity.
  • diffie-hellman — (cryptography)   A public-key encryption key exchange algorithm.
  • diffuse nebula — nebula (def 1a).
  • diffusion line — a range of clothes made by a top fashion designer for a high-street retailer
  • dinoflagellate — any of numerous chiefly marine plankton of the phylum Pyrrophyta (or, in some classification schemes, the order Dinoflagellata), usually having two flagella, one in a groove around the body and the other extending from its center.
  • discomfortable — an absence of comfort or ease; uneasiness, hardship, or mild pain.
  • disconformable — of or relating to a disconformity.
  • disdainfulness — The state or quality of being disdainful.
  • disgustfulness — the quality of being disgustful
  • disregardfully — In a disregardful manner; negligently; heedlessly.
  • do the needful — to perform a necessary task
  • do-it-yourself — of or designed for construction or use by amateurs without special training: a do-it-yourself kit for building a radio.
  • dogbane family — the plant family Apocynaceae, characterized by shrubs, trees, and herbaceous plants having milky and often poisonous juice, simple opposite leaves, often showy flowers, and fruit usually in dry pods, and including the dogbane, oleander, periwinkle, and plumeria.
  • doppler effect — (often lowercase) the shift in frequency (Doppler shift) of acoustic or electromagnetic radiation emitted by a source moving relative to an observer as perceived by the observer: the shift is to higher frequencies when the source approaches and to lower frequencies when it recedes.
  • double feature — a motion-picture program consisting of two films shown one after the other for the price of a single ticket.
  • driftless area — a tract of land that was once surrounded but never covered by a continental glacier, consequently having no glacial deposits.
  • dwarf palmetto — an apparently stemless palm, Sabal minor, of the southeastern U.S., having stiff, bluish-green leaves, the leafstalks arising from the ground.
  • electric field — a field of force surrounding a charged particle within which another charged particle experiences a force
  • faeroe islands — group of Danish islands in the N Atlantic, between Iceland & the Shetland Islands: 540 sq mi (1,399 sq km); pop. 44,000
  • fair-trade law — a state or federal law authorizing fair-trade agreements: repealed 1975.
  • fairy bluebird — any fruit-eating passerine bird of the genus Irena, of the East Indies, the males of the several species being characteristically black below and purple-blue above.
  • falseheartedly — In a falsehearted manner.
  • fantail darter — a North American freshwater fish, Etheostoma flabellare, of the perch family.
  • faraday shield — an enclosure constructed of grounded wire mesh or parallel wires that shields sensitive electrical instruments from electrostatic interference.
  • feather-legged — cowardly.
  • federalisation — Alternative spelling of federalization.
  • federalization — to bring under the control of a federal government: to federalize the National Guard.
  • feeblemindedly — Alt form feeble-mindedly.
  • feeding bottle — infant's feeding receptacle
  • feel compelled — If you feel compelled to do something, you feel that you must do it, because it is the right thing to do.
  • fellow student — sb studying at same institution
  • fertile period — the time during a woman's menstrual cycle at which she is most likely to become pregnant, or the equivalent time for an animal
  • fertility drug — a substance that enhances the ability to produce young.
  • fiddle pattern — a pattern of spoon or fork having a handle that narrows abruptly from a broad, flat upper part and terminates with a pronounced shoulder above the bowl or tines.
  • fiddler beetle — a black scarab beetle, Eupoecila australasiae, having markings resembling a violin.
  • field emission — the removal of electrons from a metallic conductor by a strong electric field.
  • field exercise — a military exercise in which mock warfare is staged between two forces.
  • field guidance — a method of guiding a missile to a point within a gravitational or radio field by means of the properties of the field
  • field hospital — an organization of medical personnel with medical equipment for establishing a temporary hospital at isolated posts or in the field to support ground troops in combat.
  • field larkspur — a European plant, Consolida regalis, of the buttercup family, having sparse clusters of blue or violet-colored flowers and smooth fruit.
  • field mushroom — any of various fleshy fungi including the toadstools, puffballs, coral fungi, morels, etc.
  • field of force — the region of space surrounding a body, such as a charged particle or a magnet, within which it can exert a force on another similar body not in contact with it
  • field of honor — the scene of a battle or duel.
  • field strength — the intensity of an electromagnetic wave at any point in the area covered by a radio or television transmitter
  • field-to-wheel — relating to all phases of biofuel production and use from growing to combustion
  • fillister head — a cylindrical screw head.
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