| Catha edulis | A plant of Ethiopia and Arabia (family Celastraceae), cultivated for use as a stimulant; khat (the fresh leaves and twigs) is chewed or used in the preparation of a beverage; the active principle is pharmacologically related to the amphetamines, probably d-norisoephedrine. Origin: Ar. Khat (05 Mar 2000) |
|---|
| Mytilus edulis | <marine biology> The edible mussel, a marine bivalve mollusc. They have ciliated gills that are used for filter feeding and these are utilised in studies on the cilium and on metachronism. (18 Nov 1997) |
|---|