n (genetics) A genetically modified organism that carries one or more genes in its chromosomes that has been made less active or had its expression reduced.
n (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.
n (nautical) The condition of a sailboat being pushed abruptly to horizontal, with the mast parallel to the water surface.
n (soccer) a short pass played downwards, for example from the head onto someone's feet.