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formic acid

(Encyclopedia)formic acid or methanoic acid mĕthˌənōˈĭk [key], HCO2H, a colorless, corrosive liquid with a sharp odor; it boils at 100.7℃ and solidifies at 8.4℃. It has the lowest molecular weight and is ...

Pinnacles National Park

(Encyclopedia)Pinnacles National Park, c.26,000 acres (10,500 hectares), in the Gabilan Mts. of the Coast Ranges, W central Calif.; est. as a national monument 1980, designated a national park 2013. Pinnacles featu...

insect repellent

(Encyclopedia)insect repellent, substance applied to the skin in order to provide protection against biting insects, primarily mosquitoes, ticks, chiggers, fleas, and certain flies. The most effective such substanc...

Jünger, Ernst

(Encyclopedia)Jünger, Ernst ĕrnst yüngˈər [key], 1895–1998, German writer. Jünger's early war novels were based on arduous army experience. Strongly influenced by Nietzsche, they glorified war and its sacri...

bee-eater

(Encyclopedia)bee-eater, any of the brightly colored, insect-eating birds of the family Meropidae. They range in length from 6 to 14 in. (15–36 cm). The plumage of many species is predominantly green but usually ...

honey locust

(Encyclopedia)honey locust, leguminous deciduous tree (Gleditsia triacanthos) of the family Leguminosae (pulse family), native to the eastern half of the United States but planted as a shade tree in many regions of...

riddle

(Encyclopedia)riddle, puzzling question, specifically one that consists of a fanciful description or definition of something to be guessed. A famous riddle was asked by the Sphinx: “What goes on four legs in the ...

metamorphosis

(Encyclopedia)metamorphosis mĕtˌəmôrˈfəsĭs [key] [Gr.,=transformation], in zoology, term used to describe a form of development from egg to adult in which there is a series of distinct stages. Many insects, ...

dandelion

(Encyclopedia)dandelion [Eng. form of Fr.,=lion's tooth], any plant of the genus Taraxacum of the family Asteraceae (aster family), perennial herbs of wide distribution in temperate regions. The dandelion has a ros...

bee balm

(Encyclopedia)bee balm, name for several herbs, especially Melissa officinalis and Monarda didyma, both typical perennials of the family Labiatae (mint family) named for their fragrance, attractive to bees and humm...