attenuate

Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++at·ten·u·ate /əˈtenjueɪt/ verb [transitive] formalEFFECTIVE to make something weaker or less 使变弱；稀释 an attenuated form of the polio virus 脊髓灰质炎减毒病毒→ See Verb table

Examples from the Corpus

attenuate• A few minutes of rest, and he recovered his oxygen level, although something within felt attenuated.• But deliveries even to these companies are expected to be severely attenuated.• In other words, subcultural cleavage has attenuated and cultural homogeneity has extended from structural orientation into policy orientation.• During calcium ingestion, factors such as calcitonin might attenuate bone resorption, while bone calcium deposition continues.• The relationship between qualifications and jobs is attenuated by the complexities of labour market segmentation and this itself is subject to local diversification.• Accordingly, pre-exposure to the context can be expected to attenuate the extent to which latent inhibition will develop context-specificity.