Often observed flicking its tongue, snakes use their forked tongue to smell the air. Snakes are ectotherms, meaning they must regulate their body temperature externally by sunning themselves or retreating to cool, shaded areas. Snakes hibernate during the winter. Snakes must shed their skin three to six times per year.
vanity noun [U]. âº the âpersonal âcharacteristic of being too âproud of and âinterested in yourself, esp. in âyour âappearance or âachievements. (Definition of vanity from the Cambridge Academic Content Dictionary Â© Cambridge University Press). See all translations.
The definition of treacherous is someone who is guilty of dishonesty or betrayal, or something that is dangerous or hazardous. 1  An example of treacherous is someone you thought was your friend who shares your secrets with everyone. 2  An example of treacherous is ground made slippery because of an ice storm.