Science / Biology / Lignin: A polymer in the secondary cell wall of woody plant cells that helps to strengthen and stiffen the wall; related term lignified.


Business / Machine Shop / Truing: The act of centering or aligning a workpiece or cutting tool so that an operation may be performed accurately. Also, correcting the eccentricity or out of round condition when dressing a grinding whee MORE


Entertainment / Bowling / Bed: The area surrounding the lane, including the approach, the pit, and the gutters. MORE


Business / Finance / Rebalancing: Realigning the proportions of assets in a portfolio as needed. MORE


Technology / Computers / Degauss: To remove magnetism from a device. The term is usually used in reference to color monitors and other display devices that use a Cathode Ray Tube (CRT). These devices aim electrons onto the display scr MORE


Science / Biology / Sclerenchyma: One of the three major cell types in plants; have thickened, rigid, secondary walls that are hardened with lignin; provide support for the plant. Sclerenchyma cells include fibers and sclereids. Plant MORE


Science / Biology / Tracheids: Long, tapered cells with pitted walls that form a system of tubes in the xylem and carry water and solutes from the roots to the rest of the plant. One type of xylem cells. Tracheids are long and rela MORE