keelback means any of various colubrid snakes of the subfamily Natricinae, whose dorsal scales exhibit strong keeling.
Among words judged in Lexicurio's Arena, keelback ranks #1,028 of 20,714 for Qualifying.
Etymology
From keel + back.
noun
- Any of various colubrid snakes of the subfamily Natricinae, whose dorsal scales exhibit strong keeling.