Knockdowns meaning : 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. The use of a reagent such as an oligonucleotide with sequence complementary to an active gene or its mRNA transcript, to interfere with the expression of said gene. The condition of a sailboat being pushed abruptly to horizontal, with the mast parallel to the water surface. A short pass played downwards, for example from the head onto someone's feet. A shelter erected for use as a temporary dressing room. A collection of parts required to assemble a product, typically manufactured in one region and exported elsewhere for assembly.