penetration

penetration
    n 1: an attack that penetrates into enemy territory [syn:
         {penetration}, {incursion}]
    2: clear or deep perception of a situation [syn: {penetration},
       {insight}]
    3: the act of entering into or through something; "the
       penetration of upper management by women"
    4: the ability to make way into or through something; "the
       greater penetration of the new projectiles will result in
       greater injuries"
    5: the depth to which something penetrates (especially the depth
       reached by a projectile that hits a target)
    6: the act (by a man) of inserting his penis into the vagina of
       a woman
    

Penetration \Pen"e*tra`tion\, n. [L. penetratio: cf. F.
   p['e]n['e]tration.]
   1. The act or process of penetrating, piercing, or entering;
      also, the act of mentally penetrating into, or
      comprehending, anything difficult.
      [1913 Webster]

            And to each in ward part,
            With gentle penetration, though unseen,
            Shoots invisible virtue even to the deep. --Milton.
      [1913 Webster]

            A penetration into the difficulties of algebra.
                                                  --Watts.
      [1913 Webster]

   2. Acuteness; insight; sharp discoverment; sagacity; as, a
      person of singular penetration. --Walpole.
      [1913 Webster]

   Syn: Discernment; sagacity; acuteness; sharpness;
        discrimination. See {Discernment}, and {Sagacity}.
        [1913 Webster]
    

PENETRATION, crimes. The act of inserting the penis into the female organs 
of generation. 9 Car. & Pa 118; S. C. 38 E. C. L. R. 63. See 8 Car. & Payne, 
614; 34 E. C. L. R. 562; 5 C. & P. 321; S. C. 24 E, C. L. R. 339; 9 C. & P. 
31 Id. 752; 38 E. C. L. R. 320. But in order to commit the crime of rape, it 
is requisite that the penetration should be such as to rupture the hymen. 5 
C. & P. 321. 
     2. This has been denied to be sufficient to constitute a rape without 
emission. (q.v.) Bee, on this subject, 12 Co. 37; Hawk. bk 1, c. 41, s. 3; 1 
Hale, P. C. 628; 1 East, P. C. 437, 8; Russ & Ry. C. C. 519; 6 C. & P. 351; 
5 C. & P. 297, 321; S. C. 24 E. C. L. R. 339; 1 Chit. Med. Jur. 386 to 395; 
1 Virg. Cas. 307; 4 Mood. Cr. Cas. 142, 337; 4 Car. & P. 249; 1 Par. & Fonb. 
433; 2 Mood. & M. C. N. P. 122; 1 Russ. C. & M 560; 1 East, P. C. 437. 
    

127 Moby Thesaurus words for "penetration":
      access, acuity, acumen, acupunctuation, acupuncture, acuteness,
      admission, apperception, astuteness, bore, boring, broach,
      cleverness, cogency, critical discernment, decoction, diffusion,
      discernment, discrimination, drill hole, embedment, empiercement,
      entrance, entree, entry, farseeingness, farsightedness, fixing,
      flair, foresight, foresightedness, goring, graft, grafting,
      imbuement, impaction, impactment, impalement, implantation, import,
      importation, importing, impregnation, incision, incisiveness,
      income, incoming, infiltration, infixion, infusion, ingoing,
      ingress, ingression, injection, inoculation, input, inroad,
      insertion, insight, insinuation, instillation, instillment, intake,
      intelligence, interjection, interpenetration, interpolation,
      introduction, introgression, intromission, intrusion, judgment,
      keenness, lancing, leakage, longheadedness, longsightedness,
      marination, overrunning, overspreading, overswarming, penetrating,
      perception, perceptiveness, percipience, percolation, perforation,
      perfusion, permeation, perspicaciousness, perspicacity,
      perspicuity, perspicuousness, pervasion, piercing, pricking,
      providence, punching, puncture, puncturing, quick-wittedness,
      reception, sagaciousness, sagacity, saturation, seepage,
      sensibility, sensitivity, sentience, shrewdness, skewering,
      soaking, steeping, suffusion, terebration, tessellation,
      transfixation, transfixion, transforation, transfusion, transplant,
      transplantation, trenchancy, trepanning, trephining, understanding,
      wit