ABSTRACT
In mereology, ‘fusion’ has two usages. One says that x is the fusion of the ys if and only if the ys compose x. Hence, saying ‘a fusion’ is just a way of saying ‘a composite object’. Similarly to say that the x fuses the ys is just to say that x is composed of the ys (and if you suspect that philosophers just use the word ‘fusion’ and its cognates rather than talking about composition, solely in an effort to sound that bit funkier – well, we could not possibly comment). Hence, you are composed of all your various body parts: your body is a fusion of all those parts, or ‘fuses’ them.
