tapping(redirected from Lap tapping)
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special wounding of growing trees for the purpose of obtaining essential oils, resins, raw rubber, and sugar syrup.
The tapping of rubber trees is the most developed form of tapping in world economy. In the USSR the tapping of pine trees is commercially significant. To a small extent the nut pine Pinus Sibirica and the fir are tapped, and a very valuable balsam used in optics is obtained. In the USSR in the southern Urals and Byelorussia, birch and maple are tapped for their sugar syrup.