Frank Szmulowicz, Ph. D. Oct 2, 2014:

Good. So it is not zero, but the coefficient multiplying something to the zeroth power. In this case, that coefficient is the zeroth-order coefficient or term, i.e., a0, for example. Zeroth-order term would work.

literary (asker) Oct 2, 2014:

prawie na pewno: "the zero-degree term"

bardzo dobrze gugluje w pracach z "surveying", o ile to jest to

Frank Szmulowicz, Ph. D. Oct 1, 2014:

A "zero term" is a term that is equal to zero. A "zeroth term" is the ordinal number of a term that is not necessarily zero. If the term is equal to zero, then use zero term. But I see several examples of wyraz zerowy, a0, for example, where zero is a subscript and a0 is not equal to zero.

literary (asker) Oct 1, 2014:

"the zero term" - w jednym artykule polskiego autora