the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Annelida > [noun] > member of > parts of > region in which growth occurs (2)
the region of an annelid worm in which growth or regeneration is initiated.
(a) = growing-region n. at growing, n. compounds 1; (b) = growth area n.; (c) = growing zone n. at growing, n. compounds 2.