bouldern.1
/ˈbəʊldə/, U.S. /ˈboʊldər/ 1. A water-worn rounded stone, varying in size, but generally understood to be larger than a pebble, used frequently for paving and building purposes; a cobble.
ΘΚΠ
the world > the earth > structure of the earth > constituent materials > stone > a stone > [noun] > cobble
boulder-stonea1300
cogglea1400
cobbled stonec1435
cobble?a1500
cobblestone?a1500
boulder1607
cocklestone1677
cobling-stone1681
roll stone1830
1607 G. Markham Cavelarice i. 57 Paued with pibble, boulder, or some other kinde of small stone.
1811 J. Pinkerton Petralogy I. 265 Brown clay slate, in bowlders, found in the bed of the Alecnundra.
1837 T. Carlyle French Revol. I. v. ix. 291 The Bastille,..sinks day after day,..its ashlars and boulders tumbling down continually.
1871 J. Tyndall Fragm. Sci. (ed. 6) I. vi. 209 Fastened the sail at the top, and loaded it with boulders at the bottom.
2. spec. Geology. A large weather-worn mass or block of stone, frequently carried by natural forces to a greater or less distance from the parent rock, and generally lying on the surface of the ground, or in superficial deposits; an erratic block.
ΘΚΠ
the world > the earth > structure of the earth > constituent materials > rock > [noun] > a rock > boulder
stonerockeOE
rochec1300
rocka1413
calionc1459
outlier1610
boother1680
tumbler1789
boulder1815
lost stone1819
erratic blocka1828
erratic blocka1828
lost rock1831
gibber1834
tumbling stone1857
foundling-stone1892
1815 R. Bakewell Introd. Geol. (ed. 2) iv. 73 Some of the vertical beds of rock covering the granite contain..boulders.
1830 C. Lyell Princ. Geol. I. 369 Enormous rounded boulders..of trachyte and basalt.
1859 C. Darwin Origin of Species xii. 335 Erratic boulders have..been noticed on the Rocky Mountains.
3. transferred. A lump or mass of some material; spec. in Mining, a large detached piece of ore found away from the regular lode. Also attributive in the sense of ‘big, lumpy’.
ΘΚΠ
the world > the earth > minerals > mineral deposits > [noun] > isolated deposit
nest1715
bunch1815
pocket1848
boulder1861
the world > matter > constitution of matter > density or solidity > [noun] > a dense or solid thing or body
clota1000
goba1382
massa1382
gobbetc1384
clustera1387
lumpa1400
grume1555
solidity1604
concrescence1610
concression1613
concretion1646
ponderant1656
condensation1665
clumper1673
clue1674
solid1698
clump1699
wodge1847
density1858
boulder1861
doorstop1967
swadge1968
1861 G. A. Sala Twice round Clock 173 Its boulders of whitening, and its turpentine-infected bundles of firewood.
1863 J. D. Dana Man. Geol. 537 Boulders of Native Copper have been found.
1882 Pall Mall Gaz. 31 May 4/1 The birds will have..all of the seed; the boulder clods will never cover it.
Compounds
C1. General attributive.
boulder-strewed adj.
ΘΚΠ
the world > the earth > land > ground > [adjective] > rocky
rochyc1325
rocky?c1475
scopulous1596
sassinous1632
warty1648
bouldery1859
boulder-strewed1897
boulder-strewn1897
1897 Outing 29 339/2 A wearisome tramp over the boulder-strewed mountain side.
boulder-strewn adj.
ΘΚΠ
the world > the earth > land > ground > [adjective] > rocky
rochyc1325
rocky?c1475
scopulous1596
sassinous1632
warty1648
bouldery1859
boulder-strewed1897
boulder-strewn1897
1897 Daily News 5 May 3/1 Arta Hill, bleak and boulder strewn.
1899 Westm. Gaz. 11 Dec. 8/1 The precipitous boulder-strewn heights.
C2.
boulder-belt n. a belt of boulders deposited by a glacier on melting.
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the world > the earth > land > landscape > [noun] > types of terrain
patchwork1865
Mound Region1873
boulder-flat1884
karrenfeld1885
boulder-belt1894
karst land1894
karst1902
felsenmeer1905
stone-field1906
staircasing1911
fundament1928
strewn field1937
thermokarst1943
patterned ground1950
pseudokarst1954
tower karst1954
tektite field1960
stone pavement1969
1894 J. Geikie Great Ice Age (ed. 3) 742 In some instances these boulder-belts are all the marginal morainic representatives that can be detected over considerable tracts.
boulder-clay n. a clayey deposit belonging to the ice age, and containing boulders, etc.
ΘΚΠ
the world > the earth > structure of the earth > constituent materials > clay > [noun] > boulder clay
till1842
boulder-clay1859
ground-moraine1863
1859 H. Miller Sketch-bk. Pop. Geol. i. 30 The boulder-clay exhibits certain unique appearences.
1878 T. H. Huxley Physiography (ed. 2) xvii. 282 An icy sea, from which the boulder clay and glacial gravels were deposited.
1884 Dawson in Handbk. Canada 324 Stratified sands and gravels overlying the boulder-clay.
boulder-drift n. = boulder-formation n.
ΘΚΠ
the world > the earth > structure of the earth > structural features > boulder, pebble, or stone formation > [noun] > boulder formation
boulder-formation1845
boulder-drift1876
boulder-pavement1894
boulder-train1967
1876 D. Page Adv. Text-bk. Geol. (ed. 6) xix. 355 The boulder-drift is a bold and clearly-defined formation.
boulder-flat n. a tract of country strewed with boulders.
ΘΚΠ
the world > the earth > land > landscape > [noun] > types of terrain
patchwork1865
Mound Region1873
boulder-flat1884
karrenfeld1885
boulder-belt1894
karst land1894
karst1902
felsenmeer1905
stone-field1906
staircasing1911
fundament1928
strewn field1937
thermokarst1943
patterned ground1950
pseudokarst1954
tower karst1954
tektite field1960
stone pavement1969
1884 J. Colborne With Hicks Pasha in Soudan 44 The road across this boulder-flat consisted of numerous pathways running side by side.
boulder-formation n. a formation or deposit consisting of mud, clay, etc., in which boulders are embedded.
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the world > the earth > structure of the earth > structural features > boulder, pebble, or stone formation > [noun] > boulder formation
boulder-formation1845
boulder-drift1876
boulder-pavement1894
boulder-train1967
1845 C. Darwin Jrnl. (ed. 2) ix. 180 Fragments of primitive rocks, derived from the surrounding boulder-formation, were equally numerous.
boulder-head n. a kind of seawall.
boulder-pavement n. a bed of boulders naturally arranged.
ΘΚΠ
the world > the earth > structure of the earth > structural features > boulder, pebble, or stone formation > [noun] > boulder formation
boulder-formation1845
boulder-drift1876
boulder-pavement1894
boulder-train1967
1894 J. Geikie Great Ice Age (ed. 3) 523 Here and there ‘boulder-pavements’ occur.
boulder-paving n. paving made of boulders.
boulder-period n. the geological epoch in which boulder-formations were being produced, the Ice Age or Glacial Period.
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the world > the earth > structure of the earth > age or period > [noun] > ice-age or glaciation
ice time1841
boulder-period1845
glacial epoch1846
ice age1855
stage1895
little ice age1939
1845 C. Darwin Jrnl. (ed. 2) viii. 174 The ice-transporting boulder-period.
boulder-train n. boulders deposited by the melting of a glacier.
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the world > the earth > structure of the earth > structural features > deposited by water, ice, or wind > [noun] > glacial
trail1866
valley train1892
sandr1893
ice contact1896
postglacial1928
boulder-train1967
the world > the earth > structure of the earth > structural features > boulder, pebble, or stone formation > [noun] > boulder formation
boulder-formation1845
boulder-drift1876
boulder-pavement1894
boulder-train1967
1967 Oceanogr. & Marine Biol. 5 135 Boulder trains between drumlins along the New England coast are effective means of such protection.
boulder-walls n. (see quot.).
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the world > space > relative position > closed or shut condition > that which or one who closes or shuts > a barrier > [noun] > wall > stone wall
stonewallc825
boulder-walls1728
flint-wall1728
rock wall1755
rock fence1838
stone fence1844
1728 E. Chambers Cycl. at Boulder Boulder-walls, a kind of Walls built of round Flints or Pebbles, laid in a strong Mortar.
This entry has not yet been fully updated (first published 1887; most recently modified version published online June 2022).
bouldern.2
The bulrush ( Scirpus lacustris); ‘the rush used for bottoming chairs’.
ΘΚΠ
the world > plants > particular plants > plants and herbs > a grass or grasses > reedy or aquatic grasses > [noun] > bulrush or club-rush
bulrushc1440
holrushc1440
glagol1480
cat's tail1548
reedmace1548
Typha1548
sun's brow1567
marsh beetle1578
marsh pestle1578
mat-rush1578
pole rush1578
water torch1578
water cat's-tail1597
ditch-down1611
doda1661
club-rush1677
deer-hair1777
club-grass1787
draw-ling1795
raupo1823
tule1837
boulder1847
blackheads1850
cat-o'-nine-tails1858
flax-tail1861
bull-sedge1879
mace reed1901
totora1936
1847–78 J. O. Halliwell Dict. Archaic & Provinc. Words Bolder.
1884 G. C. Davies Norfolk Broads iii. 24 The weeds and boulders (or clumps of flags).
This entry has not yet been fully updated (first published 1887; most recently modified version published online December 2020).
boulderv.
/ˈbəʊldə/, U.S. /ˈboʊldər/ To make into boulders. (Perhaps only in past participle.)
ΘΚΠ
the world > the earth > structure of the earth > constituent materials > rock > [verb (transitive)] > make into boulders
boulder1839
1839 R. I. Murchison Silurian Syst. i. xxxix. 540 They may have been carried down by streams to the shores, and have been long bowldered there.
This entry has not yet been fully updated (first published 1887; most recently modified version published online December 2021).
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n.21847
v.1839- quadrobulary
- quadrominium
- quadroon
- quadroon ball
- quadroon black
- quadroons
- quadroxalate
- quadroxalate of potash
- quadroxide
- quadru
- quadru-
- quadru-pawed
- quadrucorn
- quadrulapse
- quadrumana
- quadrumanal
- quadrumane
- quadrumanes
- quadrumanous
- quadrumvir
- quadrumvirate
- quadrumvirates
- quadrumvirs
- quadrune
- quadrupart