a.

1. （動物）溫血的，恆溫的[Z]
   Cat are warm-blooded animals, but snakes are cold-blooded.

   貓是溫血動物，而蛇是冷血動物。

2. 熱情的；易興奮的

adj.

1. denoting animals (chiefly mammals and birds) which maintain a constant body temperature by their metabolism; homeothermic.
2. ardent; passionate.