any nonvenomous North American colubrid snake of the genus Thamnophis, typically marked with longitudinal stripes
WordReference Random House Learner's Dictionary of American English © 2025
ˈgar•ter ˌsnake, n. [countable]
WordReference Random House Unabridged Dictionary of American English © 2025- Reptilesa harmless snake common in North and Central America, usually with three long stripes on the back.
gar′ter snake′,
- Reptilesany of numerous harmless snakes of the genus Thamnophis, common in North and Central America, ranging in size from 14 to 30 in. (36 to 76 cm) and typically having three longitudinal stripes on the back.
- 1760–70, American.
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'garter snake' also found in these entries (note: many are not synonyms or translations):