from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A type of plant tissue consisting of elongated cells with tapering ends, occurring in supporting and conducting tissue.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The tissues formed of elongated cells, especially those with pointed or oblique extremities, such as the principal cells of ordinary wood.
from the GNU version of the Collaborative International Dictionary of English
- n. A general term applied to the tissues formed of elongated cells, especially those with pointed or oblique extremities, as the principal cells of ordinary wood.
from The Century Dictionary and Cyclopedia
- n. In botany, the fibrovascular system or tissue of plants; the cells and modified cells which constitute the framework of plants, as distinguished from parenchyma, or the cells which constitute the soft tissues of plants. See parenchyma.
The fibrovascular bundles also contain soft-walled prosenchyma cells.
As the cells of this layer multiply, the greater number lengthen vertically into _prosenchyma_, or woody tissue, while some are transformed into ducts "(wood vessels?)" and others remaining as
Henceforward, if I ever make botanical quotations, I shall always call parenchyma, By-tis; prosenchyma, To-tis; and diachyma, Through-tis, short for By-tissue, To-tissue, and Through-tissue -- then the student will see what all this modern wisdom comes to!