(mathematics) A kind of graph in which most nodes are not neighbors but most can be reached from every other by a small number of steps, i.e. the typical distance between two randomly chosen nodes ...

(obsolete) plural simple present of approach

A rocket, powered by solid fuel, that is not lit while on the ground but first carried into the upper atmosphere by a gas-filled balloon, then separated from the balloon and automatically ignited t...

Synonym of voicemail