词汇 | toxin |
释义 | toxin noun[ C ] uk /ˈtɒk.sɪn/ us /ˈtɑːk.sɪn/ a poisonous substance, especially one produced by bacteria, that causes disease(尤指致病细菌产生的)毒素 Compare poisonnoun venom(POISON) Bacteria, moulds, germs & viruses abacterial acquired immune deficiency syndrome acquired immunodeficiency syndrome adenovirus aerobe bacteriology flora fly agaric germicidal germophobe gnotobiotic listeria microbe microorganism probiotic prokaryotic reindeer moss respiratory syncytial virus retroviral root rot You can also find related words, phrases, and synonyms in the topics: Poisoning and allergy A poison that exists naturally in an insect or animal, and which is often introduced into the victim by biting or stinging, is known as a venom, while one in a plant is generally known as a toxin. Plant toxins range from those that simply bother the skin to those that cause pain or death when eaten. Until the advance of the science of chemistry in the 19th century, most poisons used by humans were either venoms or toxins. toxin | American Dictionarytoxin noun[ C ] us/ˈtɑk·sɪn/ biology a poisonous substance, esp. one that is produced by bacteria and causes disease Examples of toxintoxin This research into the production of the toxin pursued two directions. Lysogenic conversion by filamentous phage encoding cholera toxin. Lysogenic conversion by a filamentous phage encoding cholera toxin. Reactions are less severe in wounds to the extremities, such as the ankle and foot, which suggests the toxins moved slowly through the bloodstream. The serine protease inhibitor canonical loop conformation : examples found in extracellular hydrolases, toxins, cytokines and viral proteins. Effect of tetrodotoxin (puffer fish toxin) on the central nervous system. Muscular contraction may increase the rate of removal of any accumulated toxins in the muscle. Why the selection of resistance to anthropogenic toxins normally involves major gene changes : the limits of natural selection. Toxin bands were identified by comparing with standard molecular weight markers. The amino acid sequences of the active sites in both toxins were also compared. It is usually better to aim for incomplete but acceptable benefit than to attempt absolute control that requires excessive toxin use (see below). Maternal causes of fetal distress include comorbidities, medications, recreational drugs, infections, metabolic abnormalities, toxins, hypothermia, and seizures. Specificity for block by saxitoxin and divalent cations at a residue which determines sensitivity of sodium channel subtypes to guanidinium toxins. Treatment should be aimed at ' removing the opportunity ' for these organisms to produce toxins. A toxin with affinity for the tumour-bound antibody is then administered. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Collocations withtoxintoxinThese are words often used in combination with toxin. Click on a collocation to see more examples of it. botulinum toxin Parents don't dare refuse the suggested interventions (botulinumtoxin injections, surgery). cholera toxin Lysogenic conversion by filamentous phage encoding cholera toxin. diphtheria toxin Notes on the production of immunity to diphtheria toxin. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. See all collocations with toxin |
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