unipolar
adjective specialized uk/ˈjuː.nɪˌpəʊ.lər/ us/ˈjuː.nɪˌpoʊ.lɚ/
(MENTAL HEALTH)
medical （抑郁症或躁狂症）单极性的
relating to or experiencing periods of either depression or mania but not both
Unipolar depression can involve anxiety and other symptoms - but no manic episodes. 单极性抑郁症可能会有焦虑或其他症状，但是不会出现躁狂症发作。
- More examples
- No difference in treatment response was seen between patients with unipolar vs bipolar depression.
- If the predominant feature is a depressed mood, it is called unipolar depression.
- The chance of a bipolar individual's marrying someone with either unipolar or bipolar illness is not unsubstantial.
(POWER)
politics 只有一个国家或地区拥有权力的，单极的
in which only one country or area has power
He argued against a "unipolar" world in which the United States is the only superpower. 他反对一个美国是唯一超级大国的“单极”世界。
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- He stated that they would reap a whirlwind if they pushed the United States into a unilateralist position in which they are the centre of a unipolar world.
- Even Europeans who do not share the Gaullist horror of a "unipolar" world think differently nowadays about the alliance with America.
- "The United States thought we could do things alone, but the unipolar moment is over and the administration has learned that we need allies," he says.
(CELL)
anatomy, biology （神经细胞）单极的
of a nerve cell, having only one structure projecting (= sticking out) from it
Unipolar neurons have only a single extension from the cell body. 单极神经元只有一条轴突从细胞体延伸出去。
- More examples
- Unipolar neurons have only one structure extending from the soma; bipolar neurons have one axon and one dendrite extending from the soma.
- Unipolar neurons are typically sensory neurons with receptors located within the skin, joints, muscles, and internal organs.
- Neurons are divided into four major types: unipolar, bipolar, multipolar, and pseudounipolar.
(ONE POLE)
physics 单极的
relating to only one pole (= one of two ends where the force is strongest) of a magnet (= an object that attracts and pushes away iron and steel)
The system contains both bipolar and unipolar technologies in one device. 该系统在一个设备中同时包含了双极和单极技术。
Compare: bipolar
- More examples
- There are wide zones of the Sun where the magnetic field is unipolar and opens towards the interplanetary space.
- MOSFETs are unipolar devices characterized by extremely high input resistance.