pen·e·tra·tive /ˈpɛnəˌtretɪv/
  (a.)滲透的,有滲透力的,徹骨的
  Pen·e·tra·tive a.
  1. Tending to penetrate; of a penetrating quality; piercing; as, the penetrative sun.
     His look became keen and penetrative.   --Hawthorne.
  2. Having the power to affect or impress the mind or heart; impressive; as, penetrative shame.
  3. Acute; discerning; sagacious; as, penetrative wisdom. “The penetrative eye.”
     Led on by skill of penetrative soul.   --Grainger.
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  penetrative
       adj 1: having or demonstrating ability to recognize or draw fine
              distinctions; "an acute observer of politics and
              politicians"; "incisive comments"; "icy knifelike
              reasoning"; "as sharp and incisive as the stroke of a
              fang"; "penetrating insight"; "frequent penetrative
              observations" [syn: acute, discriminating, incisive,
               keen, knifelike, penetrating, piercing, sharp]
       2: tending to penetrate; having the power of entering or
          piercing; "a toxic penetrative spray applied to the
          surface"; "a cold penetrating wind"; "a penetrating odor"
          [syn: penetrating]