/ prəˈfjuːʒn; NAmE / noun
[ sing.+ sing./pl. v . , U ] ( formal or literary ) a very large quantity of sth
SYN abundance :
a profusion of colours
Roses grew in profusion against the old wall.
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WORD ORIGIN
mid 16th cent.: via French from Latin profusio(n-) , from profundere pour out. Early use expressed the senses extravagance , squandering , and waste .