undulating membrane


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Related to undulating membrane: kinetoplast, Axostyle

un·du·lat·ing mem·brane

, undulatory membrane
a locomotory organelle of certain flagellate (trypanosome and trichomonad) parasites, consisting of a finlike extension of the limiting membrane with the flagellar sheath; wavelike rippling of the undulating membrane produces a characteristic movement.

un·du·lat·ing mem·brane

, undulatory membrane (ŭn'dyū-lāt'ing mem'brān, ŭn'dyū-lă-tōr'ē)
A locomotory organelle of certain flagellate (trypanosome and trichomonad) parasites, consisting of a finlike extension of the limiting membrane with the flagellar sheath; wavelike rippling of the undulating membrane produces a characteristic movement.

undulating membrane

a fold of the protozoa's cell membrane formed when the flagellum of the protozoa beats and pulls up the membrane along the full length of the parasite's body.