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duramen
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duramen
‖ duramen Bot. (djʊˈreɪmɛn) [rare L. dūrāmen hardness; a hardened or ligneous vine-branch (Columella), f. dūrāre to harden.] The central wood or heart-wood of an exogenous tree.1837 Penny Cycl. IX. 205/1. 1839 Carpenter Princ. Gen. & Comp. Phys. §329 The deposition of the products of secretion which...
Oxford English Dictionary
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Bark (botany)
suber), includes the rhytidome
Cork cambium (phellogen)
Phelloderm
Cortex
Phloem
Vascular cambium
Wood (xylem)
Sapwood (alburnum)
Heartwood (duramen
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dura
▪ I. dura1 (djʊərə) [L. dūra adj. fem. ‘hard’.] 1. Short for dura mater.1882 Wilder & Gage Anatom. Technol. 447 Notwithstanding its feminine form, dura is frequently employed without the substantive mater. 1886 Med. News XLIX. 536 The dura was universally adherent on both hemispheres. 1890 F. P. Fos...
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Burretiodendron hsienmu
The duramen has a uniform dark brown with fine, but easily distinguishable grains and delicate flower pattern on the surface of the steel as the Japanese
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lignum
▪ I. lignum1 (ˈlɪgnəm) [L. lignum wood.] ‖ 1. Bot. The wood of exogenous plants, comprising both alburnum and duramen.1826 Good Bk. Nat. I. 190 The whole of the liber of one year..becoming the alburnum of the next, and the alburnum becoming the lignum. 1866 in Treas. Bot. ‖ 2. Occurring, with qualif...
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metacrasis
‖ metacrasis (mɛtəˈkreɪsɪs) [f. meta- + crasis.] 1. Bot. ‘Kinetic metabolism, transmutation of energy’ (Jackson Gloss. Bot. Terms 1900).1884 Bower & Scott De Bary's Phaner. 509 The process of metacrasis which produces the duramen. 2. Geol. (See quot.)1886 Bonney in Proc. Geol. Soc. 59 Metacrasis (re...
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Glossary of plant morphology
Also called duramen.
Herbaceous – non-woody and dying to the ground at the end of the growing season.
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heart-wood
ˈheart-wood 1. A name for the central part of the timber of exogenous trees, hardened and matured by age; duramen.1801 Knight in Phil. Trans. XCI. 351 Ossified within the heart-wood. 1876 Oxford Bible-Helps 113 Ebony..is the heart-wood of the date-tree. 1880 Gray Struct. Bot. iii. §3. 80 In all tree...
Oxford English Dictionary
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wound
▪ I. wound, n. (wuːnd) Forms: α. 1–3 wund, 3 wunde (wnde); 3–5 wonde, 4–6 wond (6 Sc. vond), 5 woynd, 6 Sc. wind. β. 3–7 wounde, 3– wound (5 wownd, Sc. vound); 8 pl. wawnds. [Common Teutonic: OE. wund = OFris. wunde, wund (WFris. woune, EFris. wûn), MDu. wonde (Du. wond), OS. wunda (LG. wunde, wunne...
Oxford English Dictionary
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spine
▪ I. spine, n.1 (spaɪn) Also 5 spyne, spin. [ad. OF. espine (mod.F. épine, = Prov. espina, Sp. espina, Pg. espinha, It. spina), or directly ad. L. spīna thorn, prickle, backbone, etc.] I. 1. a. Bot. A stiff, sharp-pointed process produced or growing from the wood of a plant, consisting of a hardened...
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degradation
▪ I. degradation1 (dɛgrəˈdeɪʃən) [a. F. dégradation (14th c. in Hatzf.), ad. med.L. dēgradātiōn-em, n. of action f. dēgradāre, to degrade: see -ation.] The action of degrading. 1. Deposition from some rank, office, or position of honour as an act of punishment; esp. the depriving of an ecclesiastic ...
Oxford English Dictionary
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