Having a tree-like branched digestive cavity or internal hollow structure.
From dendro- (tree) + -coelous (from koila, cavity). This adjective suffix form describes organisms possessing the characteristic branched cavity structure.
The dendrocoelous design is particularly clever because it allows flat, thin organisms to absorb nutrients across a much larger surface area than their actual body size might suggest—it's like having an internal highway system compressed into a single layer!
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