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ǁ Lamina. World English Historical Dictionary

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ǁ Lamina. World English Historical Dictionary Dictionary Biographies Literary Criticism Welcome Terms of Service ⧏ Previous Next ⧐ Contents Slice Contents Key Bibliographic Record Murray’s New English Dictionary. 1903, rev. 2024. ǁ Lamina Pl. laminæ. Chiefly scientific. [L. lām(m)ina. Cf. LAME sb.1] A thin plate, scale, layer or flake (of metal, etc.).

1 1656.  Blount, Glossogr., Lamina, a thin plate of any mettal, most commonly such as Sculpters use to engrave upon.

2 1670.  J. Beale, in Phil. Trans., V. 1159. ’Tis … full of very small and thin Laminæ, seeming to be Metalline, and bright like the purest Silver.

3 1674.  Petty, Disc. Dupl. Proportion, 122. I think it easiest to consider Elastic, Springing, or Resilient Bodies, as Laminæ, Laths, or Lines.

4 1709.  F. Hauksbee, Phys.-Mech. Exper., Suppl. (1719), 329. Pieces of Brass Laminæ, whose Thickness when laid one upon another,… made a Distance between the Planes, equal to … 1/16 of an inch.

5 1792.  J. Belknap, Hist. New Hampsh., III. 98. This bark is composed of several laminæ.

6 1797.  M. Baillie, Morb. Anat. (1807), 51. Many small broken laminæ of the coagulable lymph.

7 1800.  trans. Lagrange’s Chem., II. 63. Lead … may be reduced into laminæ and plates thinner than paper.

8 1832.  Gell, Pompeiana, II. xiii. 22. The chamber was covered with laminæ of rare marbles.

9 1860.  Tyndall, Glac., I. xxi. 148. At some places the ice had been weathered into laminæ not more than a line in thickness.

10   b.  Anat., etc. A thin layer of bone, membrane, or other structure.

11 1706.  Phillips (ed. Kersey), s.v., In Anatomy, Laminæ are the Plates or Tables of the Scull, two in number.

12 1815.  W. Phillips, Outl. Min. & Geol. (1818), 105. These shells … are … extremely brittle, and readily separate into laminæ.

13 1843.  Youatt, Horse, 375. The Horny Laminæ [of the foot].

14 1859.  Darwin, Orig. Spec., vii. (1872), 183. The middle and longest lamina in the Greenland whale is ten, twelve, or even 15 feet in length.

15 1864.  Mayhew, Illustr. Horse Managemt., 95. The laminæ, or the highly-sensitive covering of the internal foot, secrete the inward layer of horn.

16 1881.  Mivart, Cat, 35. A superior broad and flat portion called the neural lamina.

17   c.  Geol. The thinnest separable layer in stratified rock deposits.

18 1794.  Sullivan, View Nat., I. 421. In caverns and fissures laminæ of spar … crystallize in various forms.

19 1849.  Murchison, Siluria, vii. 129. The laminæ of deposit being marked by layers of shells and corals.

20 1872.  Nicholson, Palæont., 6. The finer beds of clay or sand will all be arranged in thicker or thinner layers or laminæ.

21   d.  Bot. (a) A thin ‘plate’ of tissue, as in the ‘gill’ of a mushroom. (b) The blade, ‘limb,’ or expanded portion of a leaf. (c) The (usually widened) upper part or ‘limb’ of a petal. (d) The expanded part of the thallus or frond in algæ, etc.

22 1760.  J. Lee, Introd. Bot., I. iii. (1765), 7. Lamina, a thin Plate, which is the upper Part, and usually spreading.

23 1776–96.  Withering, Brit. Plants (ed. 3), I. 393. The 2 lamina [sic] or plates which constitute each gill.

24 1830.  Lindley, Nat. Syst. Bot., 153. Leaves radical, with a hollow urn-shaped petiole, at the apex of which is articulated the lamina.

25 1861.  Cooke, Man. Struct. Bot. (1893), 63. The upper or free portion [of a petal] is called the lamina or limb.

26 1875.  Bennett & Dyer, trans. Sachs’ Bot., 296. A cellular lamina or a mass of tissue which fixes itself by root-hairs and produces the thallus by growth at its apex.

27   e.  Kinematics.

28 1837.  Whewell, Hist. Induct. Sci., VIII. vi. II. 331. Any combination of rods, strings, and laminæ.

29 1878.  J. Wolstenholme, Math. Problems (ed. 2), 416. A lamina moves in its own plane so that two fixed points of it describe straight lines with accelerations f, f′.

30 1882.  Minchin, Unipl. Kinemat., 39. The locus traced out in the body … is a circle concentric with the lamina.

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