What does Sex term Greek means?

The Greek word for sex is σεξ (sex). However, this is a modern borrowing of the English word, not an ancient Greek term. Ancient Greek didn't have a single word that encompassed the modern meaning of "sex" in all its aspects (sexual intercourse, gender, etc.). Different words were used depending on the context. For example:

* Φύσις (physis): This referred to nature, and could sometimes include aspects of sexual nature or procreation.

* Γάμος (gamos): This means marriage, and implicitly includes sexual relations within marriage.

* Words related to specific sexual acts would have been used, as needed.

So there's no direct equivalent of the English word "sex" in ancient Greek; the appropriate word depended heavily on the specific meaning intended.