
1) Quadrennial event 2) Trade fair in Germany
Found on
https://www.crosswordclues.com/clue/drupa

The drupa is the largest printing equipment exhibition in the world, held every four to five years at Messe Düsseldorf in Düsseldorf, North Rhine-Westphalia, Germany. The word drupa is a portmanteau of the German words druck and papier; print and paper respectively. Thousands of industry experts are usually present, and corporate representation ...
Found on
http://en.wikipedia.org/wiki/Drupa
[gastropod] Drupa is a genus of sea snails, marine gastropod mollusks in the family Muricidae, the murex snails or rock snails. Species within the genus Drupa include: ...
Found on
http://en.wikipedia.org/wiki/Drupa_(gastropod)
No exact match found.