personal lubricant vaginal lubricant Lubricants used to reduce vaginal dryness and pain during intercourse, and by couples trying to conceive. During fertility interventions, the use of a lubricant eases sperm specimen collection by masturbation. Commonly used lubricants include saliva, oil (such as baby oil, olive oil, canola oil, or mineral oil) or commercially available lubricants that are either water-based or hydroxyethylcellulose-based. vaginal lube vaginal lubricants vaginal lubrication vagina vagina The Complete Dictionary of Sexology