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Reaction or compression wood, esp. in gymnospermous trees.
= reaction wood n. at reaction, n. compounds 2.
a type of wood that develops on the undersides of branches and at the bases of leaning trunks of softwood trees.
a type of wood with modified anatomical and biochemical features found in leaning stems and in the lower (in gymnosperms) or upper (in…
an inner core of wood in a tree, distinguished by particularly small cells.