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.
Lung base atelectasi: Bibasilar atelectasis typically refers to linear (subsegmental) atelectasis at the lung bases. This is typically seen with inadequate inspiration at the time of radiologic studies. It may be a result of prior infection or surgery.