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.
Nonetheless, they are usually considered different words whose meanings should be kept distinct: a tortuous (twisting) road; tortuous (convoluted) descriptions; torturous (painful) treatments. tortuous, torturous - Tortuous is winding, crooked, full of twists and turns, and torturous, based on torture, is painful, characterized by suffering. See also related terms for torture. Thesaurus Antonyms Related Words Synonyms Legend: