sinus ve·no·sus 
(vē-nōsəs)
(vē-nōsəs)n.
The first chamber in the heart of fish, amphibians, reptiles, and the embryos of birds and mammals, which receives blood from the veins and contracts to force the blood into the atrium.
[New Latin sinus vēnōsus : Medieval Latin sinus, sinus + Latin vēnōsus, venous.]
- set (one's) heart on
- set one's heart on
- set one's house in order
- set (one's) sights on
- set one's sights on
- set on fire
- setose
- set out
- setout
- set piece
- set point
- set sail
- setscrew
- set sights on
- set (someone) straight
- set someone straight
- set store by
- set straight
- Setswana
- sett
- settee
- setter
- set theory
- set the pace
- set the scene for