Definition of metabolism in US English:

metabolism

noun

  • The chemical processes that occur within a living organism in order to maintain life.

    Two kinds of metabolism are often distinguished: constructive metabolism, the synthesis of the proteins, carbohydrates, and fats that form tissue and store energy, and destructive metabolism, the breakdown of complex substances and the consequent production of energy and waste matter

    • ‘Legume seed development is closely related to metabolism and nutrient transport.’
    • ‘There appears to be a common logic that can be discerned behind the list of these pleiotropic changes in cell metabolism.’
    • ‘Soluble carbohydrates have a key regulatory role in carbohydrate metabolism.’
    • ‘Altered carbohydrate, fat, and protein metabolism leads to a catabolic state.’
    • ‘Dietary fructose effects on lipoprotein metabolism and risk for coronary artery disease.’
    • ‘Its function for anaerobic glycerol metabolism is unknown and in fact has not been studied so far.’
    • ‘This whole process of metabolism is analogous to filling a tank with fluid until it overflows.’
    • ‘These fragments are possibly the consequence of metabolism in plasma or kidney.’
    • ‘In addition to carbohydrate metabolism, other processes were affected by stress.’
    • ‘These hormones are related to metabolism, and thus to nutritional and metabolic status.’
    • ‘Cysteine represents the site at which sulphur enters amino acid metabolism.’
    • ‘There are three enzyme systems directly involved in sucrose metabolism.’
    • ‘The research programme aims to examine the nucleotide metabolism of germinating plant seeds.’
    • ‘Phenotypic variation can be brought about by altering hormone metabolism.’
    • ‘It is also known that peroxisomal metabolism is lower in fish than in mammals.’
    • ‘There are many examples in which hexose metabolism is required for sensing.’
    • ‘One of the effects of flavonoids is the ability to modulate xenobiotic metabolism.’
    • ‘Seed germination is a developmental process of reactivation of metabolism to originate a new plant.’
    • ‘Nitrogen uptake and metabolism are central for vegetative and reproductive plant growth.’
    • ‘Lysine metabolism in plants is regulated both by the rate of its synthesis and catabolism.’

Origin

Late 19th century: from Greek metabolē ‘change’ (from metaballein ‘to change’) + -ism.

Pronunciation

metabolism

/məˈtabəˌlizəm//məˈtæbəˌlɪzəm/