1. a statistical adjustment made to accommodate predictable fluctuations as a function of the season of the year; - Example: "seasonal adjustments for housing starts must be made in mid-winter"
WordNet (r) 3.0 (2006):
seasonal adjustment
n 1: a statistical adjustment made to accommodate predictable
fluctuations as a function of the season of the year;
"seasonal adjustments for housing starts must be made in
mid-winter"