Bur oak
Oak Oak ([=o]k), n. [OE. oke, ok, ak, AS. [=a]c; akin to D. eik, G. eiche, OHG. eih, Icel. eik, Sw. ek, Dan. eeg.] [1913 Webster] 1. (Bot.) Any tree or shrub of the genus {Quercus}. The oaks have alternate leaves, often variously lobed, and staminate flowers in catkins. The fruit is a smooth nut, called an {acorn}, which is more or less inclosed in a scaly involucre called the cup or cupule. There are now recognized about three hundred species, of which nearly fifty occur in the United States, the rest in Europe, Asia, and the other parts of North America, a very few barely reaching the northern parts of South America and Africa. Many of the oaks form forest trees of grand proportions and live many centuries. The wood is usually hard and tough, and provided with conspicuous medullary rays, forming the silver grain. [1913 Webster]

2. The strong wood or timber of the oak. [1913 Webster]

Note: Among the true oaks in America are:

{Barren oak}, or

{Black-jack}, {Quercus nigra}.

{Basket oak}, {Quercus Michauxii}.

{Black oak}, {Quercus tinctoria}; -- called also {yellow oak} or {quercitron oak}.

{Bur oak} (see under {Bur}.), {Quercus macrocarpa}; -- called also {over-cup} or {mossy-cup oak}.

{Chestnut oak}, {Quercus Prinus} and {Quercus densiflora}.

{Chinquapin oak} (see under {Chinquapin}), {Quercus prinoides}.

{Coast live oak}, {Quercus agrifolia}, of California; -- also called {enceno}.

{Live oak} (see under {Live}), {Quercus virens}, the best of all for shipbuilding; also, {Quercus Chrysolepis}, of California.

{Pin oak}. Same as {Swamp oak}.

{Post oak}, {Quercus obtusifolia}.

{Red oak}, {Quercus rubra}.

{Scarlet oak}, {Quercus coccinea}.

{Scrub oak}, {Quercus ilicifolia}, {Quercus undulata}, etc.

{Shingle oak}, {Quercus imbricaria}.

{Spanish oak}, {Quercus falcata}.

{Swamp Spanish oak}, or

{Pin oak}, {Quercus palustris}.

{Swamp white oak}, {Quercus bicolor}.

{Water oak}, {Quercus aquatica}.

{Water white oak}, {Quercus lyrata}.

{Willow oak}, {Quercus Phellos}. [1913 Webster] Among the true oaks in Europe are:

{Bitter oak}, or

{Turkey oak}, {Quercus Cerris} (see {Cerris}).

{Cork oak}, {Quercus Suber}.

{English white oak}, {Quercus Robur}.

{Evergreen oak},

{Holly oak}, or

{Holm oak}, {Quercus Ilex}.

{Kermes oak}, {Quercus coccifera}.

{Nutgall oak}, {Quercus infectoria}. [1913 Webster]

Note: Among plants called oak, but not of the genus {Quercus}, are:

{African oak}, a valuable timber tree ({Oldfieldia Africana}).

{Australian oak} or {She oak}, any tree of the genus {Casuarina} (see {Casuarina}).

{Indian oak}, the teak tree (see {Teak}).

{Jerusalem oak}. See under {Jerusalem}.

{New Zealand oak}, a sapindaceous tree ({Alectryon excelsum}).

{Poison oak}, a shrub once not distinguished from poison ivy, but now restricted to {Rhus toxicodendron} or {Rhus diversiloba}.

{Silky oak} or {Silk-bark oak}, an Australian tree ({Grevillea robusta}). [1913 Webster]

{Green oak}, oak wood colored green by the growth of the mycelium of certain fungi.

{Oak apple}, a large, smooth, round gall produced on the leaves of the American red oak by a gallfly ({Cynips confluens}). It is green and pulpy when young.

{Oak beauty} (Zo["o]l.), a British geometrid moth ({Biston prodromaria}) whose larva feeds on the oak.

{Oak gall}, a gall found on the oak. See 2d {Gall}.

{Oak leather} (Bot.), the mycelium of a fungus which forms leatherlike patches in the fissures of oak wood.

{Oak pruner}. (Zo["o]l.) See {Pruner}, the insect.

{Oak spangle}, a kind of gall produced on the oak by the insect {Diplolepis lenticularis}.

{Oak wart}, a wartlike gall on the twigs of an oak.

{The Oaks}, one of the three great annual English horse races (the Derby and St. Leger being the others). It was instituted in 1779 by the Earl of Derby, and so called from his estate.

{To sport one's oak}, to be ``not at home to visitors,'' signified by closing the outer (oaken) door of one's rooms. [Cant, Eng. Univ.] [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Bur oak — Bur Bur, Burr Burr (b[^u]r), n. [OE. burre burdock; cf. Dan. borre, OSw. borra, burdock, thistle; perh. akin to E. bristle (burr for burz ), or perh. to F. bourre hair, wool, stuff; also, according to Cotgrave, the downe, or hairie coat,… …   The Collaborative International Dictionary of English

  • bur oak — ☆ bur oak n. a North American white oak (Quercus macrocarpa) having large acorns with fringed cups; mossy cup oak …   English World dictionary

  • Bur oak — Taxobox name = Bur Oak status = LR/lc | status system = IUCN2.3 image width = 240px image caption = Bur Oak leaves and acorn regnum = Plantae divisio = Magnoliophyta classis = Magnoliopsida ordo = Fagales familia = Fagaceae genus = Quercus sectio …   Wikipedia

  • bur oak — noun medium to large deciduous oak of central and eastern North America with ovoid acorns deeply immersed in large fringed cups; yields tough close grained wood • Syn: ↑burr oak, ↑mossy cup oak, ↑mossycup oak, ↑Quercus macrocarpa • Hypernyms:… …   Useful english dictionary

  • bur oak — an oak tree, Quercus macrocarpa, of eastern North America, having shiny, dark green leaves, light gray deeply ridged bark, and very large acorns with a fringed cup, yielding a hard, durable wood: the state tree of Illinois. [1805 15, Amer.] * * * …   Universalium

  • bur oak — stambiavaisis ąžuolas statusas T sritis vardynas apibrėžtis Bukinių šeimos dekoratyvinis, medieninis augalas (Quercus macrocarpa), paplitęs Šiaurės Amerikoje. atitikmenys: lot. Quercus macrocarpa angl. bur oak; large acorn oak; mossy cup oak vok …   Lithuanian dictionary (lietuvių žodynas)

  • bur oak — noun Date: 1815 a usually large oak (Quercus macrocarpa) of eastern North America having oval acorns enclosed in a fringed cap and tough close grained wood …   New Collegiate Dictionary

  • bur oak — noun a North American oak with large fringed acorn cups and wood formerly used in shipbuilding. [Quercus macrocarpa.] …   English new terms dictionary

  • Bur Oak (VIVA) — Infobox YRT station= Bur Oak Avenue Vivastation type= Proposed Vivastation line= Viva Purple (proposed) Viva Green (proposed) nextstop= Wootten Way (westbound, proposed) Cornell (eastbound, proposed) connections= 1 Highway 7 (proposed) 2A 14th… …   Wikipedia

  • Oak savanna — Oak savanna, California An oak savanna is a type of savanna, or lightly forested grassland, where oaks (Quercus spp.) are the dominant tree species. These savannas were maintained historically through wildfires set by lightning, grazing, low… …   Wikipedia

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