Neutrino (noun)

1. An elementary particle with a very small mass and no electric charge that is able to pass through matter almost undisturbed.
2. A subatomic particle that is similar to an electron but has no electric charge and a very small mass.

Origin:

From italian neutrino, from neutro ("neutral") + -ino, as coined by physicist enrico fermi in 1934.

Examples:

1. Scientists are using a detector to detect neutrinos coming from the sun.
2. The neutrino detectors will help to understand how these particles interact with matter.
3. A neutrino beam is created by firing protons at a target, producing pions which then decay into muons and muon neutrinos.
4. The properties of neutrinos are still being studied and many questions remain unanswered.
5. The discovery of neutrino oscillation is considered as one of the most important recent developments in the field of particle physics.