Full Idea
Mereological Nominalism views a property as the omnitemporal whole or aggregate of all the things said to have the property, so whiteness is a huge white object whose parts are all the white things.
Clarification
'Mereological' means explaining relationships between parts and whotes
Gist of Idea
'Mereological Nominalism' sees whiteness as a huge white object consisting of all the white things
Source
David M. Armstrong (Universals [1995], p.503)
Book Reference
'A Companion to Metaphysics', ed/tr. Kim,Jaegwon/Sosa,Ernest [Blackwell 1995], p.503
A Reaction
A charming proposal, in which bizarre and beautiful unities thread themselves across the universe, but white objects may also be soft and warm.