| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
| a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question. |
| LSD | |
| —n | |
| Informal name (as an illegal hallucinogen): acid lysergic acid diethylamide; a crystalline compound prepared from lysergic acid, used in experimental medicine and taken illegally as a hallucinogenic drug | |
| L.S.D., £.s.d. or l.s.d. | |
| —abbreviation for | |
| librae, solidi, denarii | |
| [Latin: pounds, shillings, pence] | |
| £.s.d., £.s.d. or l.s.d. | |
| —abbreviation for | |
| [Latin: pounds, shillings, pence] | |
| l.s.d., £.s.d. or l.s.d. | |
| —abbreviation for | |
| [Latin: pounds, shillings, pence] | |
| L.S.D., £.s.d. or l.s.d. | |
| —abbreviation for | |
| librae, solidi, denarii | |
| [Latin: pounds, shillings, pence] | |
| £.s.d., £.s.d. or l.s.d. | |
| —abbreviation for | |
| [Latin: pounds, shillings, pence] | |
| l.s.d., £.s.d. or l.s.d. | |
| —abbreviation for | |
| [Latin: pounds, shillings, pence] | |
LSD (ěl'ěs-dē')
n.
Lysergic acid diethylamide; a crystalline compound derived from lysergic acid and used as a powerful hallucinogenic drug. Also called acid, lysergide.
| LSD (ěl'ěs-dē') Pronunciation Key
Short for lysergic acid diethylamide. A crystalline compound that is a synthetic derivative of lysergic acid. It is used as a powerful hallucinogenic drug. Chemical formula: C20H25N3O. |
A drug, lysergic acid diethylamide, that produces hallucinations similar to those of a psychosis. Persons on LSD “trips,” which may last for many hours, undergo distortions of their perceptions of space and time and may lose all contact with reality.
LSD definition
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LSD
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| L.S.D. pounds, shillings, and pence |