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ejido

(Encyclopedia)ejido āhēˈᵺō [key] [Span.,=common land], in Mexico, agricultural land expropriated from large private holdings and redistributed to communal farms. Communal ownership of land had been widely pra...

defoliant

(Encyclopedia)defoliant, any one of several chemical compounds that, when applied to plants, can alter their metabolism, causing the leaves to drop off. In agriculture defoliants are used to eliminate the leaves of...

draft, in banking

(Encyclopedia)draft, in banking, order by one party to another party to pay a stated sum to the person or firm in whose favor the draft is made. It is similar in form to the ordinary bank check. Often the drawer an...

Creeley, Robert

(Encyclopedia)Creeley, Robert, 1926–2005, American poet, b. Arlington, Mass. He lived in Asia, Europe, and Latin America and taught at various universities in the United States. With Charles Olson, he was a leadi...

decompression sickness

(Encyclopedia)decompression sickness, physiological disorder caused by a rapid decrease in atmospheric pressure, resulting in the release of nitrogen bubbles into the body tissues. It is also known as caisson disea...

Clarendon, Constitutions of

(Encyclopedia)Clarendon, Constitutions of, 1164, articles issued by King Henry II of England at the Council of Clarendon defining the customs governing relations between church and state. In the anarchic conditions...

shock absorber

(Encyclopedia)shock absorber, device for reducing the effect of a sudden shock by the dissipation of the shock's energy. On an automobile, springs and shock absorbers are mounted between the wheels and the frame. W...

scopolamine

(Encyclopedia)scopolamine hīˈəsēnˌ, –sĭn [key], alkaloid drug obtained from plants of the nightshade family (Solanaceae), chiefly from henbane, Hyoscyamus niger. Structurally similar to the nerve substance ...

Philip Neri, Saint

(Encyclopedia)Philip Neri, Saint nāˈrē [key], 1515–95, Italian reformer. His original name was Filippo Romolo de' Neri. From boyhood he was religious, and in 1533 he went to Rome to study. From about 1537 on, ...

thyroxine

(Encyclopedia)thyroxine thīrŏkˈsēn [key], substance secreted by the thyroid gland. The hormone thyroxine forms by combining the amino acid tyrosine with iodine. Complexed to a protein, it is stored in the folli...