1. (noun) British chemist who isolated nitrogen (1749-1819)

• daniel rutherford

2. (noun) British physicist (born in New Zealand) who discovered the atomic nucleus and proposed a nuclear model of the atom (1871-1937)

• ernest rutherford
• first baron rutherford
• first baron rutherford of nelson

1. (noun) a unit strength of a radioactive source equal to one million disintegrations per second

• radioactivity unit