In the appendix of Allen Hatcher's book "Algebraic Topology", a CW complex is defined to be a space iteratively constructed by attaching $n$-cells onto an $(n-1)$ skeleton.  There is a more general notion where a space can be built iteratively by attaching cells, however we pose no restriction on the order of attachment.  For instance the endpoints of a $1$-cell could be glued onto the interior of a $2$-cell.  This notion is discussed in Chris Schommer-Pries' answer to another MO question:

http://mathoverflow.net/questions/74863/what-does-actually-being-a-cw-complex-provide-in-algebraic-topology/74904#74904

Does this kind of complex have a name?