| 单词 | retard |
| 释义 | retard —retardingly, adv. /ri tahrd"/, for 1-3, 5; /ree"tahrd/ for 4, v.t. 1. to make slow; delay the development or progress of (an action, process, etc.); hinder or impede. v.i. 2. to be delayed. n. 3. a slowing down, diminution, or hindrance, as in a machine. 4. Slang (disparaging). a. a mentally retarded person. b. a person who is stupid, obtuse, or ineffective in some way: a hopeless social retard. 5. Auto. , Mach. an adjustment made in the setting of the distributor of an internal-combustion engine so that the spark for ignition in each cylinder is generated later in the cycle. Cf. advance. [1480-90; < L retardare to delay, protract, equiv. to re- RE- + tardare to loiter, be slow, deriv. of tardus slow; see TARDY] Syn. 1. obstruct, check. Ant. 1. accelerate. |
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