Is “Caltrop” a Scrabble word?
Yes
CALTROP
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Caltrop
/ˈkɔːltɹəp/
noun
1.A small, metal object with spikes arranged so that, when thrown onto the ground, one always faces up as a threat to pedestrians, horses, and vehicles.
2.The same object represented as a heraldic charge.
3.The starthistle, Centaurea calcitrapa, a plant with sharp thorns.
Synonyms: bindii, burra, puncturevine, knapweed, calthrop, caltrap