Botany. 1  a tuft of silky hairs at the end of a seed. 2  the leafy crown of a tree; cluster of leaves at the end of a stem. 3  a terminal cluster of bracts, as in the pineapple.
The flexible pads are called base-isolators, whereas the structures protected by means of these devices are called base-isolated buildings. The main feature of the base isolation technology is that it introduces flexibility in the structure.
Fig. 1 shows an active RF isolator capable of handling signals approaching 16 dBm and frequencies from well below 1 MHz to above 200 MHz. The circuit really emulates an isolator in that the actual signal energy is not passed from port to port and the signal levels must be fairly low.