Collins Concise English Dictionary © HarperCollins Publishers::
L.S.D., £.s.d., l.s.d. abbreviation for (in Britain, esp formerly)
  1. librae, solidi, denarii
Etymology: Latin: pounds, shillings, pence
WordReference Random House Learner's Dictionary of American English © 2026
LSD, n. [uncountable]
  1. Drugslysergic acid diethylamide: a drug that produces temporary hallucinations and a psychotic state.

WordReference Random House Unabridged Dictionary of American English © 2026
LSD, 
    1. Military[U.S. Navy.]a seagoing, amphibious ship capable of carrying and launching assault landing craft from a large, inner compartment that can be flooded, and of making emergency repairs at sea to smaller ships.
      • l(anding) s(hip) d(eck)
    2. Drugs[Pharm.]a crystalline solid, C20H25N3O, the diethyl amide of lysergic acid, a powerful psychedelic drug that produces temporary hallucinations and a schizophrenic psychotic state.
      • l(anding) s(hip) d(eck)
    3. MathematicsSee least significant digit. 

L.S.D., 
  1. Currencypounds, shillings, and pence.
Also, £.s.d., l.s.d. 
  • Latin librae, solidī, dēnāriī

'L.S.D.' also found in these entries (note: many are not synonyms or translations):
D.L.S. - LSD

Forum discussions with the word(s) "L.S.D." in the title:


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