Artificial Intelligence

Artificial intelligence (AI) is the intelligence of machines or software, as opposed to the intelligence of humans or animals. It is a field of study in computer science that develops and studies intelligent machines. Such machines may be called AIs. AI technology is widely used throughout industry, government, and science. Some high-profile applications are advanced web search engines (e.g., Google Search).

Lesbian, Gay, Bisexual, and Transgender

LGBT is an initialism that stands for "lesbian, gay, bisexual, and transgender". In use since the late 1980s, the initialism, as well as some of its common variants, functions as an umbrella term for marginalized sexualities and gender identities. 
LGBT is an adaptation of LGB, which in the mid-to-late 1980s began to replace the term gay (or gay and lesbian) in the broader LGBT community. The LGBT label is not universally agreed to by everyone that it is generally intended to include.

Body Mass Index

Body mass index (BMI) is a value derived from the mass (weight) and height of a person. The BMI is defined as the body mass divided by the square of the body height, and is expressed in units of kg/m2, resulting from mass in kilograms (kg) and height in metres (m). The BMI may be determined first by measuring its components by means of a weighing scale and a stadiometer.