Webster's English Dictionary

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nutrition

nu.tri.tion \n(y)u.-'trish-*n\ \-'trish-n*l, -*n-*l\ \-e-\ n [MF, fr. LL 
   nutrition-, nutritio, fr. L nutritus, pp. of n]utrire : the act or process 
   of nourishing or being nourished; specif : th e sum of the processes by 
   which an animal or plant takes in and utilizes food substances - 
   nu.tri.tion.al aj