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.
Medical Definition of CHELATOR. : any of various compounds that combine with metals to form chelates and that include some used medically in the treatment of metal poisoning (as by lead). one that chelates; especially: a binding agent that suppresses chemical activity by forming chelates. ADVERTISEMENT.