pene·tra·tiveBrE/ˈpenətrətɪv/NAmE/ˈpenətreɪtɪv/adjective(ofsexualactivity性行为) involvingputtingthepenis into sb's vagina or anus行房的；交媾的◆penetrativesex行房事abletomakeawayintoorthroughsth能穿透的；能进入的◆penetrativeweapons穿透性武器deepandthorough深入的；彻底的◆apenetrativesurvey全面深入的调查