(idiomatic) Behaviour of a sexual nature between one or more individuals.

(idiomatic) sexual intercourse

The act of sexual intercourse. / Sexual activities between individuals.

(biology) The practice, in some insects, of all the offspring of one sex being produced before all the offspring of the other

(mathematics) Of, related to, or based on the number sixty.

(mathematics) A fraction involving division by 60; a sixtieth part of something. / (mathematics) A base-60 number.

Containing sixty years. / (now rare) Synonym of sexagenarian: lasting or aged sixty years; sixty-year-old. / (mathematics, astronomy, now rare) Synonym of sexagesimal: base-60.

(mathematics, astronomy, now rare) Synonym of sexagesimal: base-60 numeration. / (now rare) Synonym of sexagenarian: a sixty-year-old.

plural of sexagesimal

In a sexy manner.