Dyson · proper noun1
A patronymic English surname, from Dennis + -son, compare Tyson, Tennyson.
Dyson · noun2
Genericized trademark of the brand name used by Dyson, a company known for their range of cyclonic vacuum cleaners, named after its founder James Dyson (born 1947). Compare hoover.
Etymology from Wiktionary, CC BY-SA 4.0.