<P> The international prohibition sign ( official name ) , also known as a no symbol , no sign , circle - backslash symbol , nay , interdictory circle or universal no , is a red circle with a red diagonal line through it ( running from top left to bottom right ) , completely enclosing a pictogram to indicate something is not permitted . The prohibition sign is sometimes seen in all - black , where color is not available . </P>
<P> The international prohibition sign ( official name ) , also known as a no symbol , no sign , circle - backslash symbol , nay , interdictory circle or universal no , is a red circle with a red diagonal line through it ( running from top left to bottom right ) , completely enclosing a pictogram to indicate something is not permitted . The prohibition sign is sometimes seen in all - black , where color is not available . </P>
what is the symbol of a circle with a line through it called
what is the symbol of a circle with a line through it called
international prohibition sign
international prohibition sign