walking belt, a leather or nylon device with handles that fastens around the patient’s waist and assists the health care provider with the patient’s ambulation. Also called gait belt. Compare transfer belt.
yellow fever vaccine, a vaccine produced from live, attenuated yellow fever virus grown in chick embryos. ▪ INDICATIONS: It is prescribed for immunization against yellow fever. ▪ CONTRAINDICATIONS: Immunosuppression, pregnancy, or known hypersensitivity to chicken or egg protein prohibits its use. ▪ ADVERSE EFFECTS: Among the more serious adverse effects are fever, malaise, and hypersensitivity reactions.
Z.Z.′Z.′′, symbol for increasing strength or intensity of contraction.
zymorphic /zīmôr″fik/ [Gk, zyme, ferment, morphe, form], pertaining to fermentation properties. Also called zymorphous.
zymoprotein /-prō″tēn/ [Gk, zyme, ferment, proteios, first rank], 1. a yeast protein. 2. any protein that functions as an enzyme.
zymogenic cell. See chief cell.
zymogen granules /zi″məjən/ [Gk, zyme, ferment, genein, to produce; L, granulum, little grain], granules found in some secretory exocrine cells. They contain the precursors of enzymes that become active after the granules leave the cell.
zymogen, an inactive precursor that is converted into an active enzyme by action of an acid, another enzyme, or other means.
-zyme, zymo-, combining form meaning a “ferment or enzyme”: lysozyme, serozyme, zymophore.
Zyloprim, a xanthine oxidase inhibitor. Brand name for allopurinol.