Medical Definition of grow
1a: to spring up and develop to maturityb: to be able to grow in some place or situationc: to assume some relation through or as if through a process of natural growth <the cut edges of the wound grew together>
2: to increase in size by addition of material by assimilation into the living organism or by accretion in a nonbiological process (as crystallization)
: to cause to grow <grew bacteria in culture>
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