| 词汇 | carcinogen |
| 释义 | carcinogen noun[ C ] uk /kɑːˈsɪn.ə.dʒən/ us /kɑːrˈsɪn.ə.dʒən/ a substance that causes cancer: 致癌物质 The American government classifies both asbestos and environmental tobacco smoke as class one carcinogens.美国政府将石棉和环境中的香烟烟雾列为第一类致癌物。 Cancer acinic cell carcinoma acral lentiginous melanoma adenocarcinoma adenoma aggressive benignancy benignant big C bilateral acoustic neurofibromatosis bilateral acoustic schwannoma carcinogenic Hodgkin's lymphoma inoperable lymphoma malignantly meningioma metastasis precancerous Waldenstrom macroglobulinaemia Wilms' tumour carcinogen | American Dictionarycarcinogen noun[ C ] medicalus/kɑrˈsɪn·ə·dʒən/ a substance that can cause cancer (= a serious illness that causes tissues and cells to grow too quickly) Examples of carcinogencarcinogen Large concentrations of polyaromatic compounds, many of which are known carcinogens, have spilled into the soils at the historic fuel depot areas. Included in this group are chloroform and related substances such as chlorinated acetates, many of which are listed as suspected human carcinogens. The passage of time is a ubiquitous carcinogen to which we are all exposed but age itself is not the mechanism of carcinogenesis. Our dietary intake of natural pesticides and carcinogens is far greater than our intake of synthetic pesticides. There are sufficient experimental animal studies to implicate ethanol as a human carcinogen. The present study is the first report of tenascin expression in bile duct cancer induced by a combined parasitic infection and carcinogen treatment. Cumulative genetic defects in carcinogen metabolism may increase breast cancer risk. There are in general three main groups of carcinogens (producing or initiating cancer): chemicals, radiation, and microbes. This agent is a well-known carcinogen with conflicting indications of its mutagenic activity. Natural carcinogens and toxins are never produced by accident in plants or microbes. For example, we may quite legitimately place controls on exposure to low level carcinogens, even if their effect on human health has not been proven. An animal model was sought that would maintain test sensitivity for identifying carcinogens but would be less resource intensive. On the other hand, carcinogens which act directly on genetic material would be viewed with much more suspicion. The products of genetic engineering are organic creatures, not chemical pollutants or carcinogens (unless they are specifically designed to produce such substances). We may demand that every nation adopt a polluter-pay principle; but the pollution tax, for the same carcinogen in the same industry, will generally be different. 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. |
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