Definition of "penetrative" [pen•e•tra•tive]

• Tending to penetrate; penetrant. (adjective)
• Displaying keen insight; acute. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "It is a genuine biography with that special accent due to the biographer's personality and his power of what I may call penetrative synthesis."
• "The insistence on seeing HIV transmission as villainy obscures the most stubborn fact about the epidemic - far from being the realm of malevolent or sociopathic people, HIV is transmitted through behaviors that are otherwise completely natural and normal, such as penetrative intercourse - or behaviors that may often be hard to control rather than"
• "Since girls are not necessarily going to have "penetrative" sex with boys and men and boys / men are almost certainly going to be having "penetrative" sex with somebody, why not treat only boys and men for this?"