A second or subsequent sensitization, especially following desensitization

A neighbourhood in the city of Derry, County Londonderry, Northern Ireland. / A hamlet in Aberdeenshire council area, Scotland (OS grid ref NJ8135)

(obsolete) Someone receiving a pension. / Someone who boards at a lodging-house, school, or other institution; a boarder, especially in France or other European countries.

plural of stem-and-leaf