View source for spina

{{Lewis
|lshtext=<b>spīna</b>: ae, f. [[root]] spī, [[whence]] also spicna, spīca, [[spinus]],<br /><b>I</b> a [[thorn]].<br /><b>I</b> Lit.: cum lubrica [[serpens]] Exuit in spinis vestem, Lucr. 4, 61; cf. Prop. 4 (5), 5, 1; Verg. E. 5, 39; Col. 3, 11, 5; Plin. 21, 15, 54, § 91 al.: consertum [[tegumen]] spinis, Verg. A. 3, 594; cf. Ov. M. 14, 166; id. P. 2, 2, 36; Tac. G. 17. —Of [[particular]] kinds of [[thorny]] plants or shrubs: [[solstitialis]], Col. 2, 18, 1: [[alba]], whitethorn, hawthorn, id. 7, 7, 2; 7, 9, 6; 3, 11, 5; Plin. 21, 11, 39, § 68; 24, 12, 66, § 108: Aegyptia, the Egyptian blackthorn or sloe, id. 13, 11, 20, § 66; 24, 12, 65, § 107: Arabica, Arabian [[acacia]], id. 24, 12, 65, § 107.—<br />&nbsp;&nbsp;&nbsp;<b>B</b> Transf., of things of a [[like]] [[shape]].<br />&nbsp;&nbsp;&nbsp;<b>1</b>&nbsp;&nbsp;&nbsp; A [[prickle]] or [[spine]] of [[certain]] animals (as the [[hedgehog]], [[sea]]-urchin, etc.): animantium aliae coriis tectae sunt, aliae villis vestitae, aliae spinis hirsutae, Cic. N. D. 2, 47, 121: hystrices spinā contectae ([[with]] aculei), Plin. 8, 35, 53, § 125; 9, 59, 85, § 182: spinā [[nocuus]], Ov. Hal. 130.—<br />&nbsp;&nbsp;&nbsp;<b>2</b>&nbsp;&nbsp;&nbsp; A [[fish]]-[[bone]]: [[humus]] spinis cooperta piscium, Quint. 8, 3, 66; Ov. M. 8, 244.—<br />&nbsp;&nbsp;&nbsp;<b>3</b>&nbsp;&nbsp;&nbsp; The [[backbone]], [[spine]]: [[caput]] [[spina]] excipit: ea [[constat]] ex vertebris [[quattuor]] et [[viginti]], etc., Cels. 8, 1; 8, 9, 2; 8, 14; Plin. 11, 37, 68, § 179; Varr. R. R. 2, 7, 5; Col. 6, 29, 2; Verg. G. 3, 87; Ov. M. 8, 806: dorsi [[spina]], Aug. Civ. Dei, 19, 4, n. 2: [[spina]] quae est in dorso, Gell. 3, 10, 7.— Hence, [[poet]]., the [[back]], Ov. M. 6, 380; 3, 66; 3, 672.—<br />&nbsp;&nbsp;&nbsp;<b>4</b>&nbsp;&nbsp;&nbsp; Spina, a [[low]] [[wall]] [[dividing]] the [[circus]] lengthwise, [[around]] [[which]] [[was]] the [[race]]-[[course]]; the [[barrier]], Cassiod. Var. 3, 51; Schol. Juv. 6, 588.—<br />&nbsp;&nbsp;&nbsp;<b>5</b>&nbsp;&nbsp;&nbsp; A toothpick: argentea, Petr. 32 fin.—<br /><b>II</b> Trop., in <[[number]] opt="n">plur.</[[number]]><br />&nbsp;&nbsp;&nbsp;<b>1</b>&nbsp;&nbsp;&nbsp; Thorns, i. e. difficulties, subtleties, perplexities in [[speaking]] and debating ([[class]].): disserendi spinae, Cic. Fin. 4, 28, 79; cf.: partiendi et definiendi, subtleties, intricacies, id. Tusc. 4, 5, 9; cf.: hominum [[more]] non spinas vellentium, ut Stoici, id. Fin. 4, 3, 6.—<br />&nbsp;&nbsp;&nbsp;<b>2</b>&nbsp;&nbsp;&nbsp; [[Cares]]: certemus, spinas animone ego fortius an tu Evellas agro, Hor. Ep. 1, 14, 4.—<br />&nbsp;&nbsp;&nbsp;<b>3</b>&nbsp;&nbsp;&nbsp; Errors: [[quid]] te exemta juvat spinis de pluribus una, Hor. Ep. 2, 2, 212.
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