ˈ ̷ ̷ˌ ̷ ̷ ̷ ̷ noun
Etymology: from gerund of topdress
1.
a. : the act of one who topdresses soil
b. : the material used to topdress soil
2. : a surface layer of extraneous matter
a sorry collection of old wheezes dressed out with a topdressing of analytical jargon — Louis Untermeyer