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foreland |
Noun
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a natural elevation (especially a rocky one that juts out into the sea) |
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foreshore |
Noun
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the part of the seashore between the highwater mark and the low-water mark |
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Fountain of Youth |
Noun
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a fountain described in folk tales as able to make people young again |
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free electron |
Noun
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electron that is not attached to an atom or ion or molecule but is free to move under the influence of an electric field |
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fundamental particle |
Noun
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(physics) a particle that is less complex than an atom |
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fatigue crack |
Noun
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a crack in metal resulting from metal fatigue |
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faulting |
Noun
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(geology) a crack in the earth's crust resulting from the displacement of one side with respect to the other |
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fermion |
Noun
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any particle that obeys Fermi-Dirac statistics and is subject to the Pauli exclusion principle |
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fireball |
Noun
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the luminous center of a nuclear explosion |
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fireball |
Noun
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a ball of fire (such as the sun or a ball-shaped discharge of lightning) |
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fireball |
Noun
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a highly energetic and indefatigable person |
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fireball |
Noun
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an especially luminous meteor (sometimes exploding) |
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fire pit |
Noun
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a pit whose floor is incandescent lava |
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firestone |
Noun
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a sandstone that withstands intense heat |
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firestone |
Noun
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a piece of flint that is struck to light a fire |
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firth |
Noun
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a long narrow estuary (especially in Scotland) |
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fishpond |
Noun
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a freshwater pond with fish |
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fixed star |
Noun
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any star in the Ptolemaic theory of planetary motion |
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fjord |
Noun
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a long narrow inlet of the sea between steep cliffs |
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fiord |
Noun
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a long narrow inlet of the sea between steep cliffs |
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flare star |
Noun
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a red dwarf star in which luminosity can change several magnitudes in a few minutes |
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floodplain |
Noun
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a low plain adjacent to a river that is formed chiefly of river sediment and is subject to flooding |
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flood plain |
Noun
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a low plain adjacent to a river that is formed chiefly of river sediment and is subject to flooding |
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foam |
Noun
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a mass of small bubbles formed in or on a liquid |
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foam |
Noun
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a lightweight material in cellular form |
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foam |
Verb
|
become bubbly or frothy or foaming |
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froth |
Verb
|
become bubbly or frothy or foaming |
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froth |
Noun
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a mass of small bubbles formed in or on a liquid |
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froth |
Verb
|
exude or expel foam |
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froth |
Verb
|
make froth or foam and become bubbly |
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floe |
Noun
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a flat mass of ice, smaller than an ice field, floating at sea |
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fen |
Noun
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low-lying wet land with grassy vegetation |
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fen |
Noun
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100 fen equal 1 yuan in China |
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fenland |
Noun
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low-lying wet land with grassy vegetation |
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falls |
Noun
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a steep descent of the water of a river |
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falls |
Noun
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the petals or sepals of a flower that bend downward (especially the outer perianth of an iris) |
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firedrake |
Noun
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a creature of Teutonic mythology |
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first cause |
Noun
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an agent that is the cause of all things but does not itself have a cause |
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faun |
Noun
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ancient Italian deity in human shape, with horns, pointed ears and a goat's tail |
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forest god |
Noun
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one of a class of woodland deities |
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fairy |
Noun
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a small being, human in form, playful and having magical powers |
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fairy |
Noun
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offensive term for an openly homosexual man |
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fay |
Noun
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a small being, human in form, playful and having magical powers |
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fairy godmother |
Noun
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a female character in some fairy stories who has magical powers and can bring unexpected good fortune to the hero or heroine |
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fairy godmother |
Noun
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a generous benefactor |
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fiend |
Noun
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an evil supernatural being |
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fiend |
Noun
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a person motivated by irrational enthusiasm (as for a cause) |
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fiend |
Noun
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a cruel wicked and inhuman person |
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familiar spirit |
Noun
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a spirit (usually in animal form) that acts as an assistant to a witch or wizard |
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fictional character |
Noun
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an imaginary person represented in a work of fiction (play or film or story) |