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black fly

(Encyclopedia)black fly, name for any of the flies of the family Simuliidae. The black fly is about 1⁄8 in. (3.2 mm) long and has large eyes, short legs, a stout, humped back, broad gauzy wings, and piercing-suck...

Chordata

(Encyclopedia)CE5 Common features in representative groups of the phylum Chordata Chordata kôrdāˈtə, –däˈ– [key], phylum of animals having a notochord, or dorsal stiffening rod, as the chief internal ...

anthrax

(Encyclopedia)anthrax ănˈthrăks [key], acute infectious disease of animals that can be secondarily transmitted to humans. It is caused by a bacterium (Bacillus anthracis) that primarily affects sheep, horses, ho...

hallucinogenic drug

(Encyclopedia)hallucinogenic drug həlo͞oˌsənōjĕnˈĭk [key], any of a group of substances that alter consciousness; also called psychotomimetic (i.e., mimicking psychosis), mind-expanding, or psychedelic drug...

Bruges

(Encyclopedia)Bruges brŭˈgə, Du. brüpstr;khə [key], city, capital of West Flan...

nitric oxide

(Encyclopedia)nitric oxide or nitrogen monoxide, a colorless gas formed by the combustion of nitrogen and oxygen as given by the reaction: energy + N2 + O2 → 2NO; m.p. −163.6℃; b.p. −151.8℃. Nitric oxide ...

lipoprotein

(Encyclopedia)lipoprotein lĭpˌəprōˈtēn [key], any organic compound that is composed of both protein and the various fatty substances classed as lipids, including fatty acids and steroids such as cholesterol. ...

Lyme disease

(Encyclopedia)Lyme disease or Lyme borreliosis, a nonfatal bacterial infection that causes symptoms ranging from fever and headache to a painful swelling of the joints. The first American case of Lyme's characteris...

relics

(Encyclopedia)relics, part of the body of a saint or a thing closely connected with the saint in life. In traditional Christian belief they have had great importance, and miracles have often been associated with th...

anxiety

(Encyclopedia)anxiety, anticipatory tension or vague dread persisting in the absence of a specific threat. In contrast to fear, which is a realistic reaction to actual danger, anxiety is generally related to an unc...