Knockdown

An act of knocking down or the condition of being knocked down.

An overwhelming blow.

Very strong ale or beer.

A genetically modified organism that carries one or more genes in its chromosomes that have been made less active or had their expression reduced.

To employ the knockdown technique

Powerful enough to overwhelm or knock down

"a knockdown argument"

Reduced in price, originally to a price below which an article would not be sold by the auctioneer

Capable of being taken apart for packing or removal.

"knockdown furniture"

(of a rivet head) To be formed into a head by upsetting in fastening.