| 单词 | heartwood |
| 释义 | heartwood (once / 46170 pages) n WORD FAMILY heartwood USAGE EXAMPLESThe research also found bristlecone had more resin ducts and denser sapwood and heartwood. Washington Times(Nov 11, 2016) They take me for a tour of the Heartwood, a thoroughly welcoming first impression for visitors to this historic section of the Commonwealth. Washington Times(Oct 24, 2016) This is equivalent to millions of rosewood trees as only the dark, dense heartwood is used: 70-80% of the tree is often wasted. The Guardian(Sep 29, 2016) n the older inactive central wood of a tree or woody plant; usually darker and denser than the surrounding sapwood Syn|Hyper duramen wood the hard fibrous lignified substance under the bark of trees |
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