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heartwood

heartwood, the central, woody core of a tree, no longer serving for the conduction of water and dissolved minerals; heartwood is usually denser and darker in color than the outer sapwood. Before the synthesis of aniline dyes, the heartwood of several tropical trees (sold collectively under the commercial name brazilwood) was used to produce blue, purple, and red dyes. As a tree becomes older, the heartwood increases in diameter, whereas the sapwood remains about the same thickness. See wood.

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"heartwood." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. 23 Oct. 2017 <http://www.encyclopedia.com>.

"heartwood." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (October 23, 2017). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/heartwood

"heartwood." The Columbia Encyclopedia, 6th ed.. . Retrieved October 23, 2017 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/heartwood

heartwood

heartwood (duramen) The wood at the centre of a tree trunk or branch. It consists of dead xylem cells heavily thickened with lignin and provides structural support. Many heartwood cells contain oils, gums, and resins, which darken the wood. Compare sapwood.

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"heartwood." A Dictionary of Biology. . Encyclopedia.com. 23 Oct. 2017 <http://www.encyclopedia.com>.

"heartwood." A Dictionary of Biology. . Encyclopedia.com. (October 23, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/heartwood-1

"heartwood." A Dictionary of Biology. . Retrieved October 23, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/heartwood-1

heartwood

heartwood The dead, woody centre of the trunk of a tree. The cells become impregnated with various organic compounds which cause a change in colour, so that this tissue is distinguished easily from the remainder of the wood.

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"heartwood." A Dictionary of Ecology. . Encyclopedia.com. 23 Oct. 2017 <http://www.encyclopedia.com>.

"heartwood." A Dictionary of Ecology. . Encyclopedia.com. (October 23, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/heartwood

"heartwood." A Dictionary of Ecology. . Retrieved October 23, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/heartwood

heartwood

heartwood The dead, woody centre of the trunk of a tree. The cells become impregnated with various organic compounds which cause a change in colour, so that this tissue is distinguished easily from the remainder of the wood.

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"heartwood." A Dictionary of Plant Sciences. . Encyclopedia.com. 23 Oct. 2017 <http://www.encyclopedia.com>.

"heartwood." A Dictionary of Plant Sciences. . Encyclopedia.com. (October 23, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/heartwood-0

"heartwood." A Dictionary of Plant Sciences. . Retrieved October 23, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/heartwood-0

heartwood

heartwoodcould, good, hood, Likud, misunderstood, pud, should, stood, understood, withstood, wood, would •Gielgud • manhood • maidenhood •nationhood • statehood • sainthood •priesthood • kinghood • babyhood •likelihood • livelihood • puppyhood •childhood • wifehood • knighthood •falsehood • widowhood • boyhood •cousinhood • adulthood •neighbourhood (US neighborhood) •husbandhood • bachelorhood •toddlerhood • womanhood •parenthood • sisterhood •spinsterhood • fatherhood •brotherhood, motherhood •girlhood • Talmud • Malamud •matchwood • Dagwood • Blackwood •sandalwood • sapwood • basswood •Atwood •Harewood, Larwood •hardwood • lancewood • heartwood •redwood • Wedgwood • Elmwood •bentwood • Hailwood • lacewood •beechwood • greenwood • Eastwood •cheesewood • driftwood • stinkwood •Littlewood • giltwood • Hollywood •satinwood • plywood • wildwood •pinewood • whitewood • softwood •dogwood, logwood •cottonwood • coachwood • rosewood •fruitwood • Goodwood • brushwood •firewood • ironwood • underwood •Isherwood • wormwood

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"heartwood." Oxford Dictionary of Rhymes. . Encyclopedia.com. 23 Oct. 2017 <http://www.encyclopedia.com>.

"heartwood." Oxford Dictionary of Rhymes. . Encyclopedia.com. (October 23, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/heartwood

"heartwood." Oxford Dictionary of Rhymes. . Retrieved October 23, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/heartwood