Category: F

  • Flaking off

    Coming off in flat, irregularly shaped pieces.  

  • Flagellum (plural flagella)

    (In Araceae) shoot with long slender internodes and reduced leaves; A sterile inflorescence modified as a climbing organ in the form of a barbed whip, found only in some species of Calamus (specialist term used in Palmae, 1986). A whip-like organ produced by some cells that makes motion possible. A tiny growth on a microorganism,…

  • Flagelliform

    Whip-like.  

  • Flagelliflorous

    With flowers and fruit among the leaf litter, on slender shoots coming from a tree trunk (as, for example, in some Annonaceae and Flacourtiaceae).  

  • Flagellate

    Whip-like: long, tapering and supple. A type of parasitic protozoan which uses whip-like hairs to swim, e.g. Leishmania. A type of protozoan with one or more fine whip-like threads (flagella) projecting from its body surface, by means of which it is able to swim. Some flagellates are parasites of man and are therefore of medical…

  • Flaccid

    Limp, drooping. Deficient in firmness. Limp, soft, weak, or flabby (e.g., a muscle). Having poor or absent muscle tone. Relaxed or lacking in stiffness. Used to describe muscles that are not contracting (or following denervation), and organs for example, the penis that are lying loose, empty, or with wrinkles. Describing a muscle’s condition with reduced…

  • Flabelliform

    Flabelliform

    Fan-shaped.  

  • Flabellate

    Flabellate

    Fan-shaped.  

  • Fistulose, fistulous

    Cylindrical, hollow, long, round and closed at both ends; fistulous is the more common spelling.    

  • Fistular

    Fistular

    (Of stems) cylindrical and hollow.