A1N1T1I1K5N1O1C3K5
19 points
ANTIKNOCK is validvalid
a gasoline additive used to reduce engine knocking and increase the fuel's octane rating [n ANTIKNOCKS]
an additive in petrol, used to prevent knock [n -S]
a gasoline additive used to reduce engine knocking and increase the fuel's octane rating [n ANTIKNOCKS]
an additive in petrol, used to prevent knock [n -S]