(archaeology) Helium dating.

(idiomatic) A date (romantic meeting) between two people who have never met before.

(archaeology) a method of determining the age of rock that depends on the production of helium during the decay of various radioactive isotopes of uranium and thorium.

(law, business) Having the same date.

A social outing with a current or potential lover which holds the possibility of a sexual encounter.

An organized event in which prospective romantic partners engage in a series of one-to-one meetings in a library, based around the topic of favourite books.

radiocarbon dating.

(archaeology) A technique used to date bones by measuring the amount of fluorine absorbed from the surrounding soil.

An organized event in which prospective romantic partners meet each other through a series of short one-to-one meetings

A business providing a service allowing people to meet each other for romantic outings.