1. kolk - Noun
2. Kolk - Proper noun
kolk (plural kolks)
(geology) An underwater vortex similar to a whirlwind, capable of dislodging, picking up, and moving boulders.
Kolk (plural Kolks)
A surname.
Afterwards, Henk van der Kolk met with the head of the committee, Knesset member Ran Cohen. Source: Internet
This is based on the work of Bessel van der Kolk. Source: Internet