Why Are S Orbitals Considered Non-Directional?

ldv1452
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Why are S orbitals referred to as "non-directional"? Shouldn't their direction be referred to as "all directions"?
 
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Every direction is no direction.

It's not a common term though.
 
alxm said:
Every direction is no direction.

It's not a common term though.

I thought that might be the case. Just sounded a bit odd to me.
 

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