Is there a single term that can be used to describe both a 'row' and a 'column', such as in a spreadsheet?

EDIT: I like Kris's comment-answer of "linear array", because it doesn't have so much of a loaded meaning as the other answers. "Axis" isn't bad considering I (purposefully) didn't specify the use-case. I'm trying to come up with a name for a programming variable that can either hold a row or a column, and 'array' and 'axis' can give the wrong idea in this context. :-(