The twelfth letter and ninth consonant of the English alphabet.A symbolin chem., for lithium: also Li;in Roman numerals, for 50, and with a line drawn above it (L) for 50,000.An abbreviation.[lowercase] in music, of la (in solmization);of Laiin;in stage-directions, of left;[lowercase] of liber, a book, as a division of a literary work;[lowercase or cap.] of libra, pound sterling, when written after the figures (when before the figures, it has the conventional form £): as, 100l. = £100;[lowercase] in a ship's log-book, of lightning;[lowercase] in references, of line: as, Milton, Lycidas, l. 72;[lowercase] of logarithm;[lowercase] in astronomy, of longitude (l denoting the heliocentric and λ the geocentric longitude);[lowercase] of lege;[cap. or lowercase] in anatomy, of lumbar: used in vertebral formulæ.n. A part of a house or other structure projecting at a right angle from the main body, so as to form with it the figure of the letter L: as, the building has an L of 20 feet.n. A rectangularly bent pipe-connection. Also ell in both senses.n. An abbreviation of the Latin (New Latin) Baccalaureus Litterarum, Bachelor of Letters.n. An abbreviationn. in printing, of lower case (that is, small letters, as opposed to capitals);n. of the Latin loco citato, in the place cited: used to avoid repetition of a citation or reference already given.n. In musical notation, an abbreviation for left hand.An abbreviation of Latin locus sigilli, ‘place of the seal’: usually inserted within brackets in copies of documents to indicate the position of the seal in the originals.A symbol:In chem., l- before certain compounds has reference to their levorotation, as distinguished from dextrorotation (d-) or inaction (i-).In mineralogy, the final letter of the general symbol hkl, given to the face of a crystal in the system of Miller. See symbol, 7.In electricity, the symbol for inductance (which see).In physical, for length: used in formulæ.An abbreviationof Lady;of Lake;of lane;of Latitude;of law;of league or leagues;of leave;in a ship's log-book, of length;of Liberal;of the Latin libra, a pound in weight;of link or links;of liter;of London;of long;of Lord;(aa) of low.n. Used colloquially for el., an abbreviation of elevated, shortened from elevated railway.n. An abbreviation of Literate in Arts.An abbreviation of the Latin Legum Baccalaureus, Bachelor of Laws.n. abbreviationn. An abbreviation of letter of credit.n. An abbreviationn. of Lady-day;n. of Light Dragoons;n. of Low Dutch;n. of the Latin litera dominicalis, dominical letter;n. same asn. An abbreviation of Life Guards;n. of Low German (often Low German).n. An abbreviation of Light Infantry;n. of Licentiate of Instruction;n. of Long Island.n. An abbreviation of limiting limen.n. An abbreviation of Licentiate in Medicine;n. of Licentiate in Midwifery;n. of long meter.n. An abbreviation of low-pressure.n. An abbreviation of Lloyd's Pegister. See Lloyd's and free-board.n. An abbreviation of Linnean Society;n. of left side.n. An abbreviation of lira Turca, the Turkish pound;n. of long ton.n. An abbreviation of Liberal Union;n. of Liberal-Unionist.