English dictionary



Hint: Asterisk (*) is a wildcard. Asterisk substitutes zero or more characters.

English noun: platinum black

1. platinum black (substance) a fine black powder of platinum; used as a catalyst in chemical reactions


Broader (hypernym)accelerator, catalyst









Based on WordNet 3.0 copyright © Princeton University.
Web design: Orcapia v/Per Bang. English edition: .
2025 onlineordbog.dk