词典词库拼词范例测验

rat 中文

EN[ɹæt] [-æt]
US UK
老鼠, 耗子 大家鼠
  • 大家鼠(Rattus)也稱大鼠或家鼠,是中型齧齒類,鼠科的一屬。在人類生活環境中最常見的是黑鼠(R. rattus)與褐鼠(R. norvegicus)。
FR rat
rat
rat

    Definition of rat in English Dictionary

  • 名词 (Noun)PLrats
    1. (zoology) A medium-sized rodent belonging to the genus Rattus.
      1. Similar studies of rats have employed four different intracranial resorbable, slow sustained release systems—surgical foam, a thermal gel depot, a microcapsule or biodegradable polymer beads.
    2. INF A term indiscriminately applied to numerous members of several rodent families (e.g. voles and mice) having bodies longer than about 12 cm, or 5 inches.
      1. INF A person who is known for betrayal; a scoundrel; a quisling.
        1. INF An informant or snitch.
          1. SLA A person who routinely spends time at a particular location.
            1. Our teenager has become a mall rat. ‎
            2. He loved hockey and was a devoted rink rat. ‎
          2. Scab.
            1. (north-west London) SLA Vagina.
              1. Get your rat out. ‎
            2. A wad of shed hair used as part of a hairstyle.
            3. 动词 (Verb)SGratsPRrattingPT, PPratted
              1. (usually with “on” or “out”) To betray someone and tell their secret to an authority or an enemy; to turn someone in, bewray.
                1. He ratted on his coworker.
                2. He is going to rat us out!
              2. (of a dog, etc.) To kill rats.
              3. 更多范例
                1. 用于句中
                  • These studies administered equitoxic doses of TCDD in sensitive rats and mice (100 and 500 μg/kg in rat and mouse respectively).
                  • The mixture of six probes (phenacetin, metroprolol, midazolam, omeprazole, tolbutamide and bupropion) was given to rats by intragastric administration.
                  • It was also shown that gene expression in the rat brain, although similar, differs between cortical regions, with 30 genes found to be enriched in the frontomedial cortex [51 ,52 ].
                2. 用于句首
                  • Rats were received d-amphetamine sulfate (5.0 mg/kg i.p) and were placed in rotometer bowls.
                3. 用于句尾
                  • As shown previously, stable macrohaemodynamics in our model remained near the lower limit of the renal auto-regulatory range reported for anaesthetized rats.
                  • To study the anti-inflammatory effect of selected dihydroxyflavones (DHF) in albino rats.
                  • They have shown that intravenous or intraduodenal administration of obestatin stimulates pancreatic protein and trypsin output in anesthetized rats.
              • 词类阶层 (Part-of-Speech Hierarchy)
                1. 名词
                  • 可数名词
                  • 动词
                  相关连结:
                  1. en rather
                  2. fr rate
                  3. en rate
                  4. en rational
                  5. fr rates
                  资料来源: 维基词典

                  Meaning of rat for the defined word.

                  在语法上,这个单字"rat"是一个名词,更具体地来说,是一个可数名词。它同时也是一个动词
                  困难度: 级别 3
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                  明确性: 级别 9
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                  明确的    ➨     多用途
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