(physics) A hypothetical source of extreme-energy cosmic rays (EECR), capable of accelerating particles to 1 ZeV (zetta-electronvolt).

A type of chondrocyte implantation

(taxonomy) A collection of organisms that is given formal recognition at the rank of genus with a taxonomic name, but which is known to be an artificial group rather than a natural one.

Third-person singular simple present indicative form of moisturise