**Terms** are the output effects of a statistical
model, which may take the form of main effects, nested
effects (in a model with nesting), or interaction
effects (in a model with cross factors).

Program Terms.exe will list all of the terms and their degrees of freedom for any model that you specify with any number of levels of each of any number of cross-factored or nested categorical or continuous variables.

Doncaster, C. P. & Davey, A. J. H. (2007) *Analysis of Variance and Covariance: How to
Choose and Construct Models for the Life Sciences*. Cambridge: Cambridge
University Press.

http://www.southampton.ac.uk/~cpd/anovas/datasets/