A collection of collections, and a specialization of type of temporally stuff-like thing. Each instance of type of temporally and spatially stuff-like thing is a collection of things (including portions of things) which are both temporally and spatially stufflike. Division in time or space does not destroy the stufflike quality of the object (down to a certain granularity).

(Isa STUFFTYPE type of temporally and spatially stuff-like thing) implies both (i) for most instances STUFF of STUFFTYPE, for any proper physical part (see Proper Physical Decompositions) PART of STUFF, PART is also an instance of STUFFTYPE and (ii) for all instances STUFF of STUFFTYPE, for most proper physical parts PART of STUFF, PART is also an instance of STUFFTYPE.

For example, every piece of wood is temporally stufflike: if W-168 is a piece of wood during 1996, then it's also a piece of wood for the one-minute time-slice 9:05am 7/7/96. It's also spatially stufflike: if we take that piece of wood W-168 and cut it in half, we have two things which are both pieces of wood. Since every piece of wood is both temporally and spatially stufflike, wood is an instance of type of temporally and spatially stuff-like thing. Other instances of type of temporally and spatially stuff-like thing include the collections AppleJuice, ice cream, diamond, waxed paper, and striated muscle. See the comment for type of stuff to learn more about the distinctions between, and the need for, these four collections: type of stuff, type of object and type of object.