cynosura

cynŏsūra ōva = κυνόσουρα ὠά,

addle-eggs , Plin. 10, 60, 80, § 167 ( id. 10, 58, 79, § 160, called also hypenemia or zephyria ova, wind-eggs , in pure Lat. urina ova).

Cynosura
CYNOSU´RA(Κυνόσουρα), i. e. Dog's Tail. 1. A promontory of Attica. [MARATHON] ...

Dictionary of Greek and Roman Geography
Cynosura
Cynosūra ae, f , Κυνόσουρα(dog's tail), the Lesser Bear (a constellation), C., O. ...

An Elementary Latin Dictionary
Cynosura
Cynŏsūra, ae, f., = Κυνόσουρα (hound's-tail). I The constellation at the north pole, the Cynosura , ...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.