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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. 12 Dec. 2017 <http://www.encyclopedia.com>.

"heartwood." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (December 12, 2017). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/heartwood

"heartwood." The Columbia Encyclopedia, 6th ed.. . Retrieved December 12, 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. 12 Dec. 2017 <http://www.encyclopedia.com>.

"heartwood." A Dictionary of Biology. . Encyclopedia.com. (December 12, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/heartwood-1

"heartwood." A Dictionary of Biology. . Retrieved December 12, 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. 12 Dec. 2017 <http://www.encyclopedia.com>.

"heartwood." A Dictionary of Ecology. . Encyclopedia.com. (December 12, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/heartwood

"heartwood." A Dictionary of Ecology. . Retrieved December 12, 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. 12 Dec. 2017 <http://www.encyclopedia.com>.

"heartwood." A Dictionary of Plant Sciences. . Encyclopedia.com. (December 12, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/heartwood-0

"heartwood." A Dictionary of Plant Sciences. . Retrieved December 12, 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. 12 Dec. 2017 <http://www.encyclopedia.com>.

"heartwood." Oxford Dictionary of Rhymes. . Encyclopedia.com. (December 12, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/heartwood

"heartwood." Oxford Dictionary of Rhymes. . Retrieved December 12, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/heartwood