reptile

definition: 
A cold-blooded vertebrate of a class that includes snakes, lizards, crocodiles, turtles, and tortoises. They are distinguished by having a dry scaly skin, and typically laying soft-shelled eggs on land
sentence: 
Several hunts organized by the city government over the past months turned up empty-handed, apparently since cold-blooded reptiles are not very active during the chillier months
difficulty: 
very easy
toefl frequency: 
2
toefl classification: