Related Terms. 1  operating system virtualization. 2  mobile operating system (OS). 3  OS-operating system. 4  server operating system. 5  system. 6  Microsoft Windows XP operating system. 7  Linux OS (Operating System). 8  paravirtualized operating system. 9  NOS-network operating system. 10  Chrome OS.
Prune and shape evergreen shrubs to provide year-round hedges, ground covers and privacy screens in your yard. The scarlet firethorn (Pyracantha coccinea) and Chinese holly (Ilex cornuta) shrubs produce red-colored berries and dark-green leaves.
Historical Examples. 1  He advanced a step toward her, disengaging himself from the evergreen. 2  At the entrance to the town an evergreen arch had been erected. 3  The evergreen itself, however, seems to know no season but spring. 4  evergreen shrubs with alternate, entire, thick, smooth leaves.