Tbh, I don't know what it means, but Google does
GOOGLE: Lipophilicity, refers to the ability of a chemical compound to dissolve in fats, oils, lipids, and non-polar solvents such as hexane or toluene. Such non-polar solvents are themselves lipophilic, and the axiom that "like dissolves like" generally holds true
MORE GOOGLE: Lipophilicity is defined as the affinity of a drug for a lipid environment. ... Lipophilicity can be measured by the distribution of a drug between the organic phase, which is generally n-octanol pre-saturated with water, and the aqueous phase, which is generally water pre-saturated with n-octanol
I hope this helps! Good luck!
