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Pronunciation:  `peni'treyshun

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

PENETRATION is a 11 letter word that starts with P.


 Synonyms: incursion, insight
 See Also: ability, attack, breakthrough, carnal knowledge, coition, coitus, congress, copulation, depth, entering, entrance, entry, foray, incoming, infiltration, ingress, intercourse, interpenetration, invasion, maraud, market penetration, onrush, onset, onslaught, perception, permeation, raid, relation, sex act, sexual congress, sexual intercourse, sexual relation



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

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

         A penetration into the difficulties of algebra.

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

Syn: Discernment; sagacity; acuteness; sharpness;
     discrimination. See {Discernment}, and {Sagacity}.

Thesaurus Terms
 Related Terms: 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