Most antifreeze solutions contain high levels of ethylene glycol, an ingredient that, once metabolized, is extremely toxic to dogs and cats. Pets are often attracted to the liquid because of its sweet taste. Even small amounts can be lethal to animals.
Wiktionary(0.00 / 0 votes)Rate this definition: arduous(Adjective) Needing or using up much energy; testing powers of endurance. The movement towards a peaceful settlement has been a long and arduous political struggle.
Define tortuous. tortuous synonyms, tortuous pronunciation, tortuous translation, English dictionary definition of tortuous. adj. 1. Having or marked by repeated turns or bends; winding or twisting: a tortuous road through the mountains. 2. Not straightforward; circuitous;...