habituation

名词 habituation:

1. being abnormally tolerant to and dependent on something that is psychologically or physically habit-forming (especially alcohol or narcotic drugs)
   同义词：addiction, dependence, dependance, dependency
2. a general accommodation to unchanging environmental conditions

ha.bit.u.a.tion

n.（名词）
The process of habituating or the state of being habituated.
成为习惯：养成习惯的过程或养成习惯的状态

Physiological tolerance to a drug resulting from repeated use.
适应性：由于长期使用某种药物而产生的对该药的生理上的耐药性
Psychological dependence on a drug.
成瘾：心理上对毒品的依赖
Psychology The decline of a conditioned response following repeated exposure to the conditioned stimulus.
【心理学】 反应减弱：因不断接受条件刺激而伴随产生的条件反射减弱