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foetal variant of fetal.
foetid variant of fetid.
foetus variant of fetus.
fog a thick cloudlike mass or layer made up of tiny water droplets suspended in the air near the ground. [8 definitions]
fog bank a distinct dense mass of fog, esp. as seen from a distance.
fogbound unable to move because of fog, or surrounded by fog.
foggy full of or covered by fog. [3 definitions]
foghorn a loud, deep-sounding horn, as on a ship, used in fog or at night to give warning signals.
fogless combined form of fog.
fogy someone who has old-fashioned habits, beliefs, or ideas, esp. someone who is also boring (usu. prec. by old).
foible a minor flaw or weakness in personality, character, or behavior. [2 definitions]
foil1 to prevent (a person, plan, enterprise, effort, or the like) from succeeding.
foil2 a very thin flexible sheet of metal such as aluminum. [7 definitions]
foil3 a narrow lightweight sword with a flexible blade, a flat handguard, and a blunt point, used in fencing. [2 definitions]
foist to pass off (a false or worthless article) as authentic, valuable, or worthy (usu. fol. by off). [2 definitions]
fol. abbreviation of "following" or "followed."
folacin a compound found in leafy green vegetables, essential in human nutrition for the production of blood cells, amino acids, and nucleic acids, and considered to be part of the vitamin B complex.
-fold multiplied by; times. [2 definitions]
fold1 to bend over upon itself so that one section lies on or against another section. [16 definitions]
fold2 a fenced or walled enclosure where sheep or other domestic animals are kept. [4 definitions]
foldaway folding to a compact size for easy storage when not in use, as a cot, light table, or chair.