(organic chemistry) An organic compound, 6-methyl-9,10-didehydro-ergoline-8-carboxylic acid, derived from an alkaloid found in ergot; its amide derivatives are widely used as pharmaceuticals and as hallucinogenic drugs (LSD).

A group of vigilantes intent on lynching someone.

(astronomy) A faint spring constellation of the northern sky. It lies north of the constellation Cancer.

The Chinese tropical fruit tree Litchi chinensis, of the soapberry family. / That tree's bright red oval fruit with a single stone surrounded by a fleshy white aril.

(anatomy) In mammals, including humans, a network of lymph vessels and lymph nodes that transport fluid, fats, proteins, and lymphocytes to the bloodstream as lymph, and remove microorganisms and other debris from tissues.

(anatomy) Pertaining to lymph or the lymphatic system. / Lacking energy or enthusiasm; having characteristics once associated with an excess of lymph: lack of muscle tone, paleness, sluggishness, etc.

(anatomy) A vessel that transports lymph.

(anatomy, immunology) Each of the small oval bodies of the lymphatic system, distributed along the lymphatic vessels, that are clustered in the armpits, groin, neck, chest and abdomen. They act as filters, with an internal honeycomb of connective tissue filled with lymphocytes and macrophages that collect and destroy bacteria, viruses and foreign matter from lymph. When the body is fighting an infection, these lymphocytes multiply rapidly and produce a characteristic swelling of the lymph nodes.

Either of two large ground-dwelling Australian songbirds, of the genus Menura, named because of the beautiful tail feathers of the male of one species, the superb lyrebird (Menura novaehollandiae), which can be erected to look like a lyre, and notable for their extraordinary ability to mimic natural and artificial sounds from their environment.

Any of the family Oxyopidae of spiders, which hunt their prey rather than spinning webs to ensnare them.