cultri-, cultr-

1. A blade or wheel attached to the beam of a plow that makes vertical cuts in the soil in advance of the plowshare.
2. From Middle English culter, from Old English culter, and Old French coltre; all come from Latin culter, "knife, plowshare".

Formed like a knife or coulter; having a sharp edge like a knife.

1. Shaped like a pruning knife; cultrate.
2. Shaped like a knife or plowshare; curved and asymmetric.

Having a bill shaped like a knife or coulter, as certain grallatorial birds (the heron, stork, etc.).

1. Swallowing or pretending to swallow knives.
2. Devouring knives; swallowing, or pretending to swallow, knives; applicable to people who have swallowed, or have seemed to swallow, knives with impunity.