Jam
1. A mass of people or objects crowded together; also, the pressure from a crowd; a crush; as, a jam in a street; a jam of logs in a river.
2. An injury caused by jamming.
a preserve of fruit boiled with sugar and water; as, raspberry jam; currant jam; grape jam. Jam nut. See Check nut, under Check. Jam weld, a butt weld. See butt.
Origin: Prob. Fr. Jam, v.; but cf. Also ar. Jamad ice, jelly, jamid congealed, jamd congelation, ice.
(Science: chemical) see jamb.
Dictionary > Jam
You will also like...

Amphibians & Early Reptiles
Obtaining air outside an aquatic environment required species to acquire suitable adaptations, and this was the case of ..

Adaptive Radiation
The diversification of several new species from a recent ancestral source, each adapted to utilize or occupy a vacant ad..

The Human Nervous System
The nervous system is essentially a biological information highway. This tutorial gives an overview of the nervous syste..

Effect of Chemicals on Growth & Development in Organisms
Plants and animals need elements, such as nitrogen, phosphorus, potassium, and magnesium for proper growth and developme..

Independent Assortment and Crossing Over
This tutorial describes the independent assortment of chromosomes and crossing over as important events in meiosis. Read..

Control of Growth & Development
Control of Growth & Development tutorials look at how the genetic makeup determines the biological processes on a da..