knockdown

Etymology

knock + down

noun

1. An act of knocking down or the condition of being knocked down.
2. An overwhelming blow.
3. (slang, obsolete, uncountable) Very strong ale or beer.
4. (genetics) A genetically modified organism that carries one or more genes in its chromosomes that have been made less active or had their expression reduced.
5. (genetics) 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.
6. (nautical) The condition of a sailboat being pushed abruptly to horizontal, with the mast parallel to the water surface.
7. (soccer) a short pass played downwards, for example from the head onto someone's feet.
   Pires, a three-time Cup winner with Arsenal who scored the Gunners' winner against Southampton in the 2003 final, has been a largely peripheral figure at Villa Park since joining in November - but the 37-year-old rolled back the years with a fine finish from Delfouneso's knockdown. January 29, 2011, Chris Bevan, “Aston Villa 3 - 1 Blackburn”, in BBC
8. (film, television) A shelter erected for use as a temporary dressing room.
   We shot 'The Caterpillar' at General Service Studios, and the dressing rooms for the actors were what they call knockdowns: wooden frames covered in grungy, dirty red canvas. It looked like a circus tent. 1999, Scott Skelton, Jim Benson, Rod Serling's Night Gallery: An After-hours Tour, page 294
9. A collection of parts required to assemble a product, typically manufactured in one region and exported elsewhere for assembly.

verb

1. (genetics) To employ the knockdown technique

adj

1. Powerful enough to overwhelm.
   a knockdown argument
   a knockdown blow
2. Reduced in price, originally to a price below which an article would not be sold by the auctioneer.
3. Capable of being taken apart for packing or removal.
   knockdown furniture
4. (of a rivet head) To be formed into a head by upsetting in fastening.