Definition of 天然木 (てんねんぼく)
てんねんぼく
                        天然木
てんねんぼく
tennenboku
noun
1.
naturally growing tree, tree that does not grow in a tree plantation
See also:自然木
2.
natural wood
Related Kanji
| 天 | heavens, sky, imperial | 
| 然 | sort of thing, so, if so, in that case, well | 
| 木 | tree, wood |