A quick search produced this info:
Col legno (Italian for with the wood) is a method of playing bowed string instruments (particularly the violin, viola, cello, and double bass) whereby the strings are struck with the wood of the bow rather having the hair pulled across them. There is also a technique called col legno tratto in which the player drags the wood of the bow instead of striking the string.
And, this site that has a lot of bow terms but not all terms.
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Col legno (Italian for with the wood) is a method of playing bowed string instruments (particularly the violin, viola, cello, and double bass) whereby the strings are struck with the wood of the bow rather having the hair pulled across them. There is also a technique called col legno tratto in which the player drags the wood of the bow instead of striking the string.
And, this site that has a lot of bow terms but not all terms.
Link Removed