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Hexamethonium to Homolysin
Hexamethonium: A quaternary ammonium ganglion-blocking agent. Hexamethylmelamine : An antineoplastic agent used to treat bronchogenic carcinoma.
n-Hexane : A colourless, volatile liquid with faint odour obtained by fractional distillation of petroleum.
Hexasterol : A diethylstilbestrol derivative having the uses of estrogen.
Hexabarbitol sodium: The sodium salt of hexabarbital, used for anaesthesia sedation and hypnotic.
Hexokinase: An enzyme of the transferase class that catalyzes the reaction ATP + D-hexose - ADP + D-hexose-6-phosphate.
Hexosans : An anhydride of a hexose.
Hexose: A monosaccharide containing six carbon atoms in a molecule. Hexylcain hydrochloride: A local anae-sthetic, used for infiltration, block and topical anaesthesia.
Hexylresorcinol : Q;H13~3 (OH):z, a yellow, viscous liquid which solidifies on standing and used as topical antiseptic.
Hiccups: A spasmodic indrawing of air to the lungs, ending with a click, due to sudden closure of the local cords.
Hilum: A scar left on seed indicative of funicular attachment; point or nucleus on starch grains.
Histamine: An amine derived from histidine which is widely distributed in plants and animals.
Histamine phosphate: The phosphate salt of histamine, used as a
diagnostic aid in testing gastric secretion.
Histaminemia : The presence of histamine in the blood.
Histaminergic: Denoting those responses by histamine receptors to histamine that are blocked by histamine antagonists.
Histantinuria : The presence of histamine in the urine.
Histanoxia : Oxygen deprivation of the tissues due to low supply of the blood.
Histidase: A liver enzyme that catalyzes the deamination of histidine to urocanic acid.
Histidinal : An aldehyde analogue of histidine and the immediate precursor of histidine in the biosynthesis of amino acid.
Histidine: An essential amino acid containing nitrogenous heterocyclic ring derived from blood corpuscles.
II!stidinol : The alcohol analogue of histidine.
Histidinuria: An excess of histidine in the urine.
Histoblast: A tissue-forming cell.
Histochemistry: A branch of biochemistry denoted to the study of the chemical composition and structure of animal and plant tissue.
Histodialysis : The disintegration of tissues.
Histohydra : The presence of excessive amount of water in body tissue.
Histology: The study of minute amount of water in body tissue. Histolysis: The breaking down of tissue.
Histone: A simple protein of low molecular weight (12,000-20,000) occurring in cell nuclei attached to DNA.
Histoplasma: A genus of imperfect fungi ofthe family Moniliaceae. Histoplasmin: A skin test antigen prepared from mycelial phase Histoplasma capsulatum organism.
Histoplasmosis: Infection with Histoplasma capsulatum usually asymptomatic but may cause acute pneumonia, over-growth of reticuloendothelial cells, anemia, escape of fluid into joints, and red nodulus.
HistolThexis : Breaking up of tissue. Histothrombin : Thrombin from connective tissue.
Histotomy : The dissection of the tissue.
Histotoxic: Poisonous to tissue. Hoarseness: Husky, harsh, rough or gratting voice as when affected with . a cold.
Hodgkin's disease: A condition in which the lymphatic glands undergo a progressive enlargement. Holistic: The concept of man as a functioning whole.
Holosaccharide : A polysaccharide cOlaposed of sugar units only. Homatropine: An alkaloid derived from atropine, has anticholinergic effeL-1s.
Homeostasis: A tendency to stability in the normal body states of :
the organisms. I
Homo- : A prefix meaning the same or similar; designation a homolog of
a compound, differing in formula from the latter by an increase of CH2. Homocyclic : A ring compound containing only one kind of atom in the ring structure.
Homocysteine: A transmethylation product of methionine which is an intermediate in the synthesis of cysteine.
Homocystine: A synthetic amino acid which results from the demethylation of methionine.
Homocystinuria : A congential disease due to inability of the affected individual to metabolize.
HO'Jioeopathy : A system of medicine founded by Hahnemann. Homogamy: Reproduction resulting from the union of two cells that are identical in size and structure. Homogenation : The process of making material homogeneous. Homogeneous: Consisting of similar elements.
Homogenization: Rendering a material to uniform quality, consistency or structure; a mechanical process for reducing the size of the flat particles of an emulsion to uniform size creating a colloidal system.
Homologous: Corresponding in structure, position, origin, etc.
Homologou:; series: A series of organic compounds in which each successive member has one more CH2 group in its molecule than the
next preceding m~mber.
Homolysin : A hemolytic antibody formed by stimulation of an antigen derived from an animal of the same species.
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