endurance – n. the ability to continue an activity for a long period

toxic – adj. containing or being poisonous material

flammable – adj. capable of being easily lit and of burning quickly

cardiovascular – adj. of, relating to, or involving the heart and blood vessels

probe – n. an usually small object that is inserted into something so as to test conditions at a given point

initial – adj. of or relating to the beginning

sprout – n. to send out new growth

past its prime – figure of speech beyond the most useful or productive period

antioxidant – n. a substance that limits oxidation or chemical reactions caused by oxygen, peroxides, or free radicals


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