14-letter words starting with fl
- flotation bags — bags inflated to keep a spacecraft or helicopter afloat and upright when it lands in the sea
- flotation tank — an enclosed ventilated tank filled with a saline solution at body temperature, in which a person floats in darkness in order to relax or meditate
- flotsam-jetsam — the part of the wreckage of a ship and its cargo found floating on the water. Compare jetsam, lagan.
- flower-de-luce — the iris flower or plant.
- flower-of-jove — a white, woolly plant, Lychnis flos-jovis, of the pink family, having red or purple flowers in dense clusters.
- flowering crab — any of several species and varieties of crab apple trees with small fruits and abundant spring flowers ranging from white to reddish purple
- flowering flax — a plant, Linum grandiflorum, of northern Africa, having quickly fading, red or pink flowers.
- flowering moss — pyxie.
- flowers of tan — a common slime mold, Fuligo septica, of the central and eastern U.S., having large sporophores and yellowish, foamy plasmodia, that during a wet growing season may spread to cover large areas of lawns, woody debris, and growing plants.
- fluid coupling — Machinery. an apparatus in which a fluid, usually oil, transmits torque from one shaft to another, producing an equal torque in the other shaft.
- fluid dynamics — the branch of fluid mechanics dealing with the properties of fluids in motion.
- fluid pressure — the pressure exerted by a fluid, directly proportional to the specific gravity at any point and to the height of the fluid above the point.
- fluoboric acid — a clear, colorless liquid, HBF 4 , that ionizes abundantly in solution, used chiefly in the synthesis of fluoborates.
- fluoridization — to treat, impregnate, or affect with a fluoride.
- fluorochemical — a chemical compound containing fluorine.
- flying colours — conspicuous success; triumph
- flying dustbin — petard (def 3).
- flying gangway — monkey bridge (def 2).
- flying gurnard — any marine fish of the family Dactylopteridae, especially Dactylopterus volitans, having greatly enlarged, colorful pectoral fins that enable it to glide short distances through the air.
- flying machine — a vehicle that sustains itself in and propels itself through the air; an airplane, helicopter, glider, or the like.
- flying officer — an officer holding commissioned rank senior to a pilot officer but junior to a flight lieutenant in the British and certain other air forces
- flying trapeze — a trapeze used in performing gymnastic displays high above the ground