rat meaning

  • Rats are various medium-sized, long-tailed rodents of the superfamily Muroidea.
  • Rats are typically distinguished from mice by their size.
  • NounPLrats
    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. VerbSGratsPRrattingPT, 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. More Examples
                1. Used in the Middle of Sentence
                  • The area was plagued by all sorts of vermin: fleas, lice, mice, and rats to name a few.
                  • Hence, the present study was undertaken to assess the neuroprotectivity of spirulina alone and in combination with amantadine in experimental rat induced Parkinsonism.
                  • Clausenamide (p.o., consecutive days) increased the density of hippocampal synapses and the number of mossy nerve fibre buddings in ablactated mice and adult rats (Zhang et al. 2001).
                2. Used in the Beginning of Sentence
                  • Rats were received d-amphetamine sulfate (5.0 mg/kg i.p) and were placed in rotometer bowls.
                3. Used in the Ending of Sentence
                  • At the request of Defence Food Research Laboratory, 14 new anacardic compounds synthesised from tetrahydroanacardol were screened for toxicity to insect and albino rats.
                  • A selective COX-2 inhibitor, etoricoxib, was reported to reduce the expression of NF-κB protein and inhibit DMH-induced colon ACF in rats.
                  • As shown previously, stable macrohaemodynamics in our model remained near the lower limit of the renal auto-regulatory range reported for anaesthetized rats.

              Meaning of rat for the defined word.

              Grammatically, this word "rat" is a noun, more specifically, a countable noun. It's also a verb.
              • Part-of-Speech Hierarchy
                1. Nouns
                  • Countable nouns
                  • Verbs
                  Difficultness: Level 3
                  Easy     ➨     Difficult
                  Definiteness: Level 9
                  Definite    ➨     Versatile
                  Related Links:
                  1. en rather
                  2. fr rate
                  3. en rate
                  4. en rational
                  5. en rates