The McGraw-Hill Dictionary of Chemistry provides a compendium of 8000 terms that are central to chemistry and related fields of science and technology. The coverage in this Second Edition is focused ...
AIDS is caused by the HIV (Human Immunodeficiency Virus). AIDS is the final and most serious stage of HIV disease. It is characterized by signs and symptoms of severe immune deficiency. ...
Owls, hawks, and hawklike birds including vultures, osprey, eagles, harriers, and falcons, are birds of prey. Birds of prey, especially hawks and their relatives, are also called raptors, a Latin ...
For our purposes, religion may be defined in a very broad sense as a body of moral and philosophical teachings and the acceptance with confidence of such teachings. In this sense, Buddhism is a ...
The leukemia is called “lymphocytic” or “lymphoblastic” if the cancerous change takes place in a type of marrow cell that forms “lymphocytes.” The leukemia is called “myelogenous” or ...
“Bronchiectasis” originates from Greek literally meaning ‘stretching of the windpipe.’ It is defined as an abnormal irreversible dilatation of one or more bronchi. Bronchiectasis can be ...
The term "acid rain" is used to describe rain or snow that has a pH lower than what is natural for a given area. Acid rain is measured using a scale called "pH." The lower a substance's pH, the more ...
Soil erosion occurs when soil is removed through the action of wind and water at a greater rate than it is formed. Erosion occurs when farming practices are not compatible with the fact that ...
Clematis are often referred to the queen of the flowering vines. Plants in this versatile genus produce single or double flowers from May to October in a variety of colors. Sepals—not ...
Cable modems are devices that allow high-speed access to the Internet via a cable television network. While similar in some respects to a traditional analog modem, a cable modem is significantly more ...








