noun (plural Zs or Z's)
1.3 (usually z) The third unknown quantity in an algebraic expression.
[the introduction of x, y, and z as symbols of unknown quantities is due to Descartes (see X1)]
catch some (or a few) Zs
- North American informal Get some sleep.More example sentences
- I was catching a few Zs on the lower bunk in our call room.
- Why is it whenever I try to catch some Zs all I can hear is you two squawking?