rhomboidaladj.
/rɒmˈbɔɪdl/, U.S. /rɑmˈbɔɪd(ə)l/ 1. = rhomboid adj. 2.Rhomboidal Net: see net n.1 5.
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the world > space > shape > angularity > specific angular shape > [adjective] > quadrilateral > diamond, lozenge, or rhomb
lozenge-like1551
lozengy1602
diamond-cut1637
diamonded1642
lozenge1658
rhomboidal1658
rhomboideal1677
rhomboid1681
rhombic1701
rhomboidicala1703
star-cut1704
rhombeous1773
rhombed1776
rhombiform1825
lozenge-shaped1833
the world > relative properties > number > geometry > shape or figure > [adjective] > two-dimensional > quadrilateral > rhombic
rhomboidal1658
rhomboideal1677
rhomboid1681
rhombic1701
rhomboidicala1703
rhombeous1773
rhombed1776
rhombiform1825
1658 Sir T. Browne Garden of Cyrus ii, in Hydriotaphia: Urne-buriall 110 Perspective pictures, in their Base, Horison, and lines of distances, cannot escape these Rhomboidall decussations.
1749 D. Hartley Observ. Man i. i. 89 The rhomboidal Pinnulae in the abdominal Muscles of a living Frog, when under Contraction.
1794 R. Kirwan Elements Mineral. (ed. 2) I. 259 Oriental Garnet.., presenting..12 rhomboidal planes.
1837 J. R. McCulloch Statist. Acct. Brit. Empire I. i. i. 57 The coast of Cheshire is formed entirely of the broad rhomboidal peninsula lying between the Mersey and the Dee.
1878 F. J. Bell & E. R. Lankester tr. C. Gegenbaur Elements Compar. Anat. 144 Special differentiations of the fibres may be seen forming rhomboidal plates.
1929 H. A. A. Nicholls & J. H. Holland Text-bk. Trop. Agric. (ed. 2) ii. xix. 575 The seeds are rhomboidal in shape.
1958 J. E. Morton Molluscs xi. 207 Sthenoteuthis caroli..is exceedingly active, with a strong locking apparatus and broad rhomboidal fin vane.
1999 E. Milanesi Carpet 182/2 The rhomboidal spaces between each grid square contain a peach-tree blossom, an allusion to longevity.
2. Chiefly Crystallography and Mineralogy = rhomboid adj. 1.
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the world > matter > chemistry > crystallography (general) > crystal (general) > crystal systems > [adjective] > orthorhombic
rhombic1671
rhomboid1671
rhomboidal1700
rectangular1837
trimetric1837
orthorhombic1854
prismatic1858
1700 C. Leigh Nat. Hist. Lancs. iv. 68 The Rhomboidal Spar is frequently found in the Mines in Derbyshire, and is constituted with various Lamellæ, which are all Rhomboidal.
1812 H. Davy Elements Chem. Philos. 197 A plain surface of island crystal, or rhomboidal carbonate of lime.
1854 J. D. Hooker Himalayan Jrnls. I. xvii. 403 Thin seams of brown lignite, with a rhomboidal cleavage.
1901 Jrnl. Geol. (Chicago) 9 483 The system of parallel faults has divided the area into vertical triangular, rhombic, or rhomboidal prisms.
1958 W. E. Swinton Fossil Amphibians & Reptiles (ed. 2) iv. 17 The pleurocentrum is a rhomboidal bone placed obliquely above and behind the intercentrum.
2002 N. Asher Skinner xii. 254 Each flask contained a number of red rhomboidal crystals.
Compounds
C1. Botany. Prefixed to adjectives, forming adjectives with the sense ‘partly rhomboidal and partly ——’, as rhomboidal-acute, rhomboidal-ovate. Cf. rhomboid n. and adj. Compounds 1.
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1807 Curtis's Bot. Mag. 25 §1027 Leaves three, verticallately terminal, rhomboidal-ovate.
1847 C. C. Babington Man. Bot. (ed. 2) 269 Perigone of the fr. rhomboidal-acute toothed with 2 irregular rows of tubercles on the back.
1911 W. L. Jepson Flora Western Middle Calif. (ed. 2) 281 Leaves thickish, rhomboidal-ovate to oblong or oblong-lanceolate.
2004 M. M. Reddy & M. M. Rao in S. M. Reddy et al. University Bot. III. a. iv. 48 Shape of lamina cordate, orbiculor, rhomboidal ovate or obovate.
C2. † rhomboidal-fruited adj. Obsolete rare† rhomboidal-leaved adj. Obsolete rare
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1758 Philos. Trans. 1757 (Royal Soc.) 50 446 Dillenius's rhomboidal-fruited one [sc. plant].
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1772 R. Weston Univ. Botanist & Nurseryman III. 650 Rhomboidal-leaved Pernambucan Sida.
1786 J. Abercrombie Arrangem. Plants 52 in Gardeners Daily Assistant Rhomboidal leaved.
This entry has been updated (OED Third Edition, June 2010; most recently modified version published online June 2022).
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adj.1658