DTH reactions may include, but are not limited to, contact dermatitis (eg, poison ivy rash), tuberculin skin test reactions, granulomatous inflammation (eg, sarcoidosis, Crohn disease), allograft rejection, graft versus host disease, and autoimmune hypersensitivity reactions.
tricks of the trade. 1  Clever ways of operating a business or performing a task or activity, especially slightly dishonest or unfair ones. For example, Alma knows all the tricks of the trade, cutting the fabric as close as possible, or The butcher weighs meat after it's wrapped; charging for the packaging is one of the tricks of the trade.
Definition of rough trade. rough trade. noun - uncountable. rough male homosexual sex. Citation from Episode 2, Misfits (TV), Season 1 Episode 2 (2009) blacked out to resolve Google's penalty against this site. Last edited on Nov 19 2012. Submitted by Walter Rader (Editor) from Sacramento, CA, USA on Nov 19 2012.