Definition of phytohaemagglutinin in English:

phytohaemagglutinin

(US phytohemagglutinin)

noun

Biochemistry
  • [mass noun] A plant protein, especially that extracted from the French bean, that causes red blood cells to clump together.

    • ‘Cell-mediated immunity was assessed 7 weeks after implantation via intradermal injection of the T-cell mitogen phytohemagglutinin into the wing web and measuring the degree of swelling 24 h later.’
    • ‘Males were then subjected to a cutaneous hypersensitivity test by injecting their wing web with a lectin, phytohemagglutinin, which has a mitogenic effect on T-lymphocytes.’
    • ‘Finally, a lectin found in raw kidney bean, phytohaemagglutinin, was found to reduce the rate of an NHL tumor in mice.’
    • ‘Lymphocytes were stimulated by phytohemagglutinin and were incubated in humidified incubators at 37°C for a total of 72 h.’
    • ‘House sparrows were injected 0.05 ml of 0.2 mg phytohemagglutinin (PHA-P) in one wing web and 0.05 ml physiological water in the other wing web.’

Pronunciation

phytohaemagglutinin

/ˌfʌɪtə(ʊ)hiːməˈɡluːtɪnɪn/