Definition of 性本能 (せいほんのう)
せいほんのう
                        性本能
せいほんのう
seihonnou
noun
•
        
sex instinct
Related Kanji
| 性 | sex, gender, nature | 
| 本 | book, present, main, origin, true, real, counter for long cylindrical things | 
| 能 | ability, talent, skill, capacity |