† Lnn.

Origin: Formed within English, by clipping or shortening. Etymon: lanthanum n.

Etymology: Symbolic abbreviation for lanthanum n. Compare La n.²

Chemistry. Now disused.

The element lanthanum.La is now the usual symbol for this element.

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the world > matter > chemistry > elements and compounds > metals > specific elements > lanthanum > [noun]

lanthanum1841

La1842

Ln1842

1842 R. Kane Elements Chem. (new ed.) v. 242 (table) Lanthanum. Ln.

1870 Jrnl. Franklin Inst. 90 349 (table) Lanthanic Oxide. Ln O.

1874 D. Page Econ. Geol. ii. 14 (table) Lanthanum. Ln.

This is a new entry (OED Third Edition, December 2013; most recently modified version published online March 2022).

单词	ln
释义	† Lnn. Origin: Formed within English, by clipping or shortening. Etymon: lanthanum n. Etymology: Symbolic abbreviation for lanthanum n. Compare La n.² Chemistry. Now disused. The element lanthanum.La is now the usual symbol for this element. ΘΚΠ the world > matter > chemistry > elements and compounds > metals > specific elements > lanthanum > [noun] lanthanum1841 La1842 Ln1842 1842 R. Kane Elements Chem. (new ed.) v. 242 (table) Lanthanum. Ln. 1870 Jrnl. Franklin Inst. 90 349 (table) Lanthanic Oxide. Ln O. 1874 D. Page Econ. Geol. ii. 14 (table) Lanthanum. Ln. This is a new entry (OED Third Edition, December 2013; most recently modified version published online March 2022). < n.1842
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