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The inspissated juice of the common lettuce, sometimes used as a substitute for opium.

An alkaloid found in opium in small quantities, and extracted as a white crystalline substance.

A white organic base, resembling morphine, and obtained from certain varieties of opium.

Tincture of opium, used for various medical purposes.

s is L. Canadensis. Hare's lettuce, Lamb's lettuce. See under Hare, and Lamb. -- Lettuce opium. See Lactucarium. -- Sea lettuce, certain papery green seaweeds of the genus Ulva.

An excitant containing opium, much used by the Turks. Dunglison.

The seed of the opium poppy.

Pertaining to, or obtained from, the poppy or opium; specif. (Chem.), designating an acid related to aconitic acid, found in opium and extracted as a white crystalline substance.

An alkaloid found in opium, and extracted as a yellow amorphous substance which is easily decomposed.

A substance regarded as an anhydride of meconinic acid, existing in opium and extracted as a white crystalline substance. Also erroneously called meconina, meconia, etc., as though it were an alkaloid.

Pertaining to, or designating, an acid which occurs in opium, and which may be obtained by oxidizing narcotine.

Opium. [Obs.]

A bitter white crystalline alkaloid found in opium, possessing strong narcotic properties, and much used as an anodyne; -- called also morphia, and morphina.

Producing myosis, or contraction of the pupil of the eye, as opium, calabar bean, etc. -- n.

An alkaloid found in small quantities in opium, and extracted as a white crystalline substance of a bitter astringent taste. It is a narcotic. Called also narceia.

convulsions, and, when given in sufficient quantity, causes death. The best examples are opium (with morphine), belladonna (with atropine), and conium. Nercotykes and opye (opium) of Thebes. Chaucer.

An alkaloid found in opium, and extracted as a white crystalline substance, tasteless and less poisonous than morphine; -- called also narcotia.

sed by the ancients to give relief from pain and sorrow; -- by some supposed to have been opium or hasheesh. Hence, anything soothing and comforting. Lulled with the sweet nepenthe of a court. Pope. Quaff, O quaff this kind nepenthe. Poe.

An alkaloid found in small quantity in opium. It is identical with narcotine.

Originally, a medicine of a thicker consistence than sirup, prepared with opium. Parr.