Not sure if this is the best place to ask this, or if it can be done, but here it goes.

Is there a way to generate a tooltip anytime a certain word or phrase appears within my site? Ideally, I'd like to create a series of tooltips for some terminology. Essentially, anytime the abbreviation "TSD-1a" appears a tooltip would be generated for this abbreviation. (I'm looking for something other than me having to type the html markup everytime I want the tooltip to appear.)