knockdown

1. An act of knocking down or the condition of being knocked down. (countable, uncountable)
2. An overwhelming blow. (countable, uncountable)
3. A genetically modified organism that carries one or more genes in its chromosomes that have been made less active or had their expression reduced. (countable, uncountable)
4. 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. (countable, uncountable)
5. The condition of a sailboat being pushed abruptly to horizontal, with the mast parallel to the water surface. (countable, uncountable)
6. a short pass played downwards, for example from the head onto someone's feet. (countable, uncountable)
7. A shelter erected for use as a temporary dressing room. (countable, uncountable)
8. A collection of parts required to assemble a product, typically manufactured in one region and exported elsewhere for assembly. (countable, uncountable)

Plural knockdowns