See Also: fly-trap(dictionary)
trap(6)(dictionary)
trap(medicine)
trap(5)(dictionary)
trap(4)(dictionary)
trap(3)(dictionary)
Value trap(finance)
trap(2)(dictionary)
trap(1)(dictionary)
trap(7)(dictionary)

trap(4) (iou)



trap noun4. [trap] Also trapp. L18.
[Swedish trapp, from trappa stair (with ref. to the appearance often presented by the rock). Cf. TRAP noun5.]
Geology. Orig., a dark-coloured igneous rock more or less columnar in structure. Now, any igneous rock which is neither granitic nor of recent volcanic formation. Also trap rock.