noun
: tissue that is found characteristically around the vascular bundles of gymnosperm leaves and consists of both living cells like those of parenchyma with walls that are not lignified and thin-walled but lignified tracheids with bordered pits
noun
: tissue that is found characteristically around the vascular bundles of gymnosperm leaves and consists of both living cells like those of parenchyma with walls that are not lignified and thin-walled but lignified tracheids with bordered pits
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012