testing the performance or result of an experiment

something which is no longer of any use, or has viable replacement which is easier to obtain or function

a deterministic period between two activities or instances

to increase the duration or the physical space of an event or object

a molecule or an atom which has a positive or negative charge due to losing or gaining one or more electrons

a naturally occuring process by which an atom spontaneously decays into another atom of a different element

for something to grow or increase rapidly

to become obvious, more prominent

to agree or correlate with; to communicate by exchanging messages

a molecule capable of donating a positively charged hydrogen ion or capable of forming a covalent bond by donating an electron pair