Englishfor English speakers
actinium
Noun
—
Actinium is a radioactive element with an atomic number of 89 and symbol Ac.
uranium
Noun
—
Uranium is an element of the periodic table with atomic number 92. Its symbol is U.
Uranium is the natural element with the biggest atomic core.
—
Uranium is also the radioactive metal made of uranium atoms.
Uranium has been increasingly used since the last six decades, its radioactive properties have found both military and civil uses.
series
Noun
—
A series of events, meetings, experiments, etc. is several of them that happen one after the other and are related.
Three weeks ago troops and helicopters launched a series of attacks on Kurds in the region.
There has been a series of changes at the newspaper that began with the new editor.
The school will be hosting a series of lectures relating to poverty.
—
A TV or Radio series is a number of programs usually with the same setting and characters.
—
A series is a sporting event in which many teams compete for a championship.
Tonight is the final game of the Stanley Cup series.
—
If something is connected in series, electricity passes through each point before going to the next point.