subtreen.

Brit.

/ˈsʌbtriː/, U.S.

/ˈsəbtri/

Origin: Formed within English, by derivation. Etymons: sub- prefix, tree n.

Etymology: < sub- prefix + tree n.

1. Botany. A large shrub or small tree.

ΘΚΠ

the world > plants > particular plants > trees and shrubs > names applied to various species of trees or shrubs > [noun]

purslanec1400

mast tree1597

laburnum1693

whitebark1700

jatropha1754

quince1794

honey bush1813

snake-wood1832

ake1835

akeake1841

fire tree1851

flame-tree1866

subtree1878

1878 Jrnl. Hort., Cottage Gardener, & Country Gentleman 10 Jan. 27/2 At a distance of four miles from the east coast and at an elevation of 500 feet this very handsome evergreen sub-tree or tree-like shrub is perfectly hardy.

1929 Bull. Misc. Information (Royal Bot. Gardens, Kew) 9 287 The second plant of the sub-tree, or shrub, order, is the narrow form of Aralia chinensis.

1953 Ecol. Monogr. 23 259/2 This separated out almost all of the sub-tree canopy species such as Cornus florida.

2000 Southwestern Naturalist 45 79/2 Tropical deciduous forest consists of one main tree stratum of 6–15 m high, another bush or sub-tree understory stratum, [etc.].

2. Chiefly Mathematics and Computing. A tree (tree n. 6) forming a branch of another tree.

ΘΚΠ

the world > relative properties > number > graph or diagram > [noun] > diagram > tree diagram

tree1857

subtree1935

tree structure1965

1935 Duke Math. Jrnl. 7 312 In §3, the elements are expressed in a different way, in terms of the subtrees of the network.

1976 J. S. Gruber Lexical Struct. Syntax & Semantics ii. i. 219 Instead of writing the lexical attachment rules as transformations, we will write them as terminal subtrees.

1989 Proc. National Acad. Sci. U.S.A. 86 2268/1 In the nuclear subtree, plants branch off at about the same point as animals and fungi.

2008 J. R. Shapiro Windows Server 2008 Bible ix. 338 Organizing the registry into five logical subtrees makes it easier to navigate and understand the logical structure of the registry.

This entry has been updated (OED Third Edition, June 2012; most recently modified version published online March 2022).

单词	subtree
释义	subtreen. Brit. /ˈsʌbtriː/, U.S. /ˈsəbtri/ Origin: Formed within English, by derivation. Etymons: sub- prefix, tree n. Etymology: < sub- prefix + tree n. 1. Botany. A large shrub or small tree. ΘΚΠ the world > plants > particular plants > trees and shrubs > names applied to various species of trees or shrubs > [noun] purslanec1400 mast tree1597 laburnum1693 whitebark1700 jatropha1754 quince1794 honey bush1813 snake-wood1832 ake1835 akeake1841 fire tree1851 flame-tree1866 subtree1878 1878 Jrnl. Hort., Cottage Gardener, & Country Gentleman 10 Jan. 27/2 At a distance of four miles from the east coast and at an elevation of 500 feet this very handsome evergreen sub-tree or tree-like shrub is perfectly hardy. 1929 Bull. Misc. Information (Royal Bot. Gardens, Kew) 9 287 The second plant of the sub-tree, or shrub, order, is the narrow form of Aralia chinensis. 1953 Ecol. Monogr. 23 259/2 This separated out almost all of the sub-tree canopy species such as Cornus florida. 2000 Southwestern Naturalist 45 79/2 Tropical deciduous forest consists of one main tree stratum of 6–15 m high, another bush or sub-tree understory stratum, [etc.]. 2. Chiefly Mathematics and Computing. A tree (tree n. 6) forming a branch of another tree. ΘΚΠ the world > relative properties > number > graph or diagram > [noun] > diagram > tree diagram tree1857 subtree1935 tree structure1965 1935 Duke Math. Jrnl. 7 312 In §3, the elements are expressed in a different way, in terms of the subtrees of the network. 1976 J. S. Gruber Lexical Struct. Syntax & Semantics ii. i. 219 Instead of writing the lexical attachment rules as transformations, we will write them as terminal subtrees. 1989 Proc. National Acad. Sci. U.S.A. 86 2268/1 In the nuclear subtree, plants branch off at about the same point as animals and fungi. 2008 J. R. Shapiro Windows Server 2008 Bible ix. 338 Organizing the registry into five logical subtrees makes it easier to navigate and understand the logical structure of the registry. This entry has been updated (OED Third Edition, June 2012; most recently modified version published online March 2022). < n.1878
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