Oestrual definitions

Oestrual

• (a.) Of or pertaining to sexual desire; -- mostly applied to brute animals; as, the oestrual period; oestrual influence.
Found on http://thinkexist.com/dictionary/meaning/oestrual/

---

OEstrual

OEs'tru·al adjective [ See OEstrus .] (Physiol.) Of or pertaining to sexual desire; -- mostly applied to brute animals; as, the œstrual period; œstrual influence.
Found on http://www.encyclo.co.uk/webster/O/13

---