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symbolic logic

(Encyclopedia)symbolic logic or mathematical logic, formalized system of deductive logic, employing abstract symbols for the various aspects of natural language. Symbolic logic draws on the concepts and techniques ...

hand, foot, and mouth disease

(Encyclopedia)hand, foot, and mouth disease (HFMD), infectious viral disease that most commonly occurs in children under five years of age. Symptoms include fever, poor appetite, and a sore throat, followed by pain...

nearsightedness

(Encyclopedia)nearsightedness or myopia, defect of vision in which far objects appear blurred but near objects are seen clearly. Because the eyeball is too long or the refractive power of the eye's lens is too stro...

malice

(Encyclopedia)malice, in law, an intentional violation of the law of crimes or torts that injures another person. Malice need not involve a malignant spirit or the definite intent to do harm. To prove malice, it is...

bronchitis

(Encyclopedia)bronchitis brŏnkīˈtĭs [key], inflammation of the mucous membrane of the bronchial tubes. It can be caused by viral or bacterial infections or by allergic reactions to irritants such as tobacco smo...

pneumothorax

(Encyclopedia)pneumothorax no͞omōthôrˈăks [key], collapse of a lung with escape of air into the pleural cavity between the lung and the chest wall. The cause may be traumatic (e.g., gunshot or stab wound), spo...

prejudice

(Encyclopedia)prejudice, unsubstantiated prejudgment of an individual or group, favorable or unfavorable in character, tending to action in a consonant direction. The hostility that prejudice can engender and the d...

executors and administrators

(Encyclopedia)executors and administrators. An executor is the person designated in the will of a deceased person to carry out the provisions of the will. An administrator is the person appointed by a probate court...

antenna

(Encyclopedia)antenna ăntĕnˈə [key], in electronics, system of wires or other conductors used to transmit or receive radio or other electromagnetic waves (see radio); sometimes called an aerial. The idea of usi...

caisson

(Encyclopedia)caisson kāˈsən, –sŏn [key] [Fr.,=big box], in engineering, a chamber, usually of steel but sometimes of wood or reinforced concrete, used in the construction of foundations or piers in or near a...