(Greek mythology) The goddess of lyric poetry, particularly erotic poetry, eroticism, and mimic imitation, and one of the Muses; the daughters of Zeus & Mnemosyne. Usually depicted with a crown/wreath of myrtle and roses, holding a lyre and a golden arrow and doves. Often accompanies Eros/Cupid.

(mathematics) An ancient algorithm for finding prime numbers that works by discarding multiples from a list of potential primes.

The epoch in the lunar geologic timescale that occurred between 3200 million and 1100 million years ago.

An Ancient Greek polymath at Alexandria, best known for his studies of geography.