noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   Any method or substance that prepares something for winter conditions.
2. 2
   A specialized fertilizer applied to a lawn in late fall in order to prepare it for winter and promote healthy growth in the spring.

Etymology

From winterize + -er.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.