Repellent
Repellent (-lent) , adjective
[Latin repellens, -entis, p. pr. ]
Driving back; able or tending to repel.
Repellent , noun
1.
That which repels.
2.
(Medicine) A remedy to repel from a tumefied part the fluids which render it tumid. — Dunglison
3.
A kind of waterproof cloth. — Knight