Definition of biochemical in English:



  • Relating to the chemical processes and substances which occur within living organisms.

    • ‘All other biochemical parameters were processed within the hospital's laboratory routine service.’
    • ‘Proteins are involved in every biochemical process that maintains life in a living organism.’
    • ‘Waste in landfills decays in physical, chemical, and biochemical processes that may eventually render it environmentally harmless.’
    • ‘Like scraps of an old manuscript traces of ancient biochemical processes survive in today's living organisms.’
    • ‘The body is about 70 per cent water, and this most basic of fluids participates in all the major physiological and biochemical processes in the body.’
    • ‘In heavy water the hydrogen bonds are slightly stronger, and this changes the properties of the liquid sufficiently to disrupt the lubricating effect water has on biochemical processes.’
    • ‘A little of this can benefit marine life by providing carbonate ions - a vital constituent in the biochemical process by which sea creatures such as corals and molluscs build their shells.’
    • ‘The initiation of the neoplastic process could be caused by some biochemical substances produced during metabolism in chronically inflamed tissues.’
    • ‘They might also influence free radicals: atoms with unpaired electrons that are highly reactive and play a part in all sorts of biochemical processes.’
    • ‘Salt tolerance of plants is a complex phenomenon that involves morphological and developmental as well as physiological and biochemical processes.’
    • ‘Many biochemical substances, principally of placental and endothelial origin, increase in pre-eclampsia.’
    • ‘Together, these two processes constitute metabolism, the sum of the biochemical processes in an organism.’
    • ‘This is the building block for other plant products, as well as being the immediate source of energy for all of a plant's biochemical processes, via its respiration back to carbon dioxide and water.’
    • ‘The problem remains to determine whether other decisive astronomical factors in planet formation are functionally linked to the surface conditions needed for biochemical processes.’
    • ‘Thus, it is possible that HR could be the consequence of a biochemical process that is actually killing both host and those of the infecting organism.’
    • ‘The experiment also showed that two molecules could prevent the activation of a chemical which was vital to a biochemical process called proteolytic processing.’
    • ‘Further elucidation of the biochemical processes in these animal models of myopia may have implications for treating myopia in humans.’
    • ‘Inorganic nitrogen assimilation, in the form of ammonium, onto carbon skeletons for the production of amino acids is one of the most important biochemical processes in plants.’
    • ‘It is metabolised by the skin cells' normal biochemical pathways within 48 hours and so does not lead to prolonged photosensitisation.’
    • ‘The results of the mature seed composition analysis are presented as concentrations in order to reflect processes at the biochemical level in the seeds.’


  • A biochemical substance.

    • ‘It activates such big-time biochemicals as the neurotransmitters serotonin and dopamine and increases the fluidity of nerve cell membranes to make neurons more responsive.’
    • ‘Current chemicals and biochemicals were of the highest purity available and were from sources described previously.’
    • ‘If an adequate distance is placed between the deer and the hounds, the pace will be allowed to reduce and there will be a period of recovery, some of the biochemicals will return to more normal levels.’
    • ‘Diverse classes of biochemicals might be involved in reaction - diffusion mechanisms.’
    • ‘Selkoe reported remarkable progress in using biochemicals to clear the ‘plaque’ deposits in the brain that lead to Alzheimer's.’
    • ‘Both Lesch and Suomi have shown that the level of biochemicals such as the serotonin transporter molecule can be ‘set’ as early as in the womb, at least in mice and monkeys.’
    • ‘Salts and other basic chemicals were bought from Merck (Darmstadt, Germany, analytical grade) and biochemicals from Sigma (Munich, Germany).’
    • ‘Changes in biochemicals, such as endorphins, cortisol and immune system-related molecules, may occur.’
    • ‘It so happens that in our particular embodiment this hardware consists most basically of DNA molecules, along with other complex biochemicals.’
    • ‘Sulfur is an important nutrient for organisms, as it is a key constituent of certain amino acids, proteins, and other biochemicals.’
    • ‘When placed in a specially designed fluidic chamber the chip directs the molecular assembly of biochemicals.’
    • ‘True essential oils, on the other hand, are a complex mix of the plant's hormones, nutrients and biochemicals.’
    • ‘All other biochemicals were of analytical grade and obtained from either Fisher Scientific, Edmonton, Canada, Sigma Chemical Co., St. Louis, MO. or CanLab Division of Baxter Co.’
    • ‘All the biochemicals were of analytical grade.’
    • ‘Long time periods do not help the evolutionary theory if biochemicals are destroyed faster than they are formed.’
    • ‘These breakthroughs are providing increasingly powerful capabilities for quantitatively analyzing large numbers of biochemicals, as well as selectively manipulating their activities.’
    • ‘Secondary metabolites, also known as natural products, are biochemicals which might be described as lacking a role in the ‘internal economy’ of the producing organism.’
    • ‘Blood samples will also be taken to measure for catechols - biochemicals which are found in the blood if nervous-system activity has increased.’
    • ‘Pert states that peptides and other informational substances are the biochemicals of emotion.’
    • ‘Since IR spectra are due to vibrations of biochemicals, the changes in the spectra are due to underlying changes in cell biochemistry.’