What does S/W stand for?

S/W stands for "spike-and-wave"

How to abbreviate "spike-and-wave"?

"spike-and-wave" can be abbreviated as S/W

What is the meaning of S/W abbreviation?

The meaning of S/W abbreviation is "spike-and-wave"

What does S/W mean?

S/W as abbreviation means "spike-and-wave"