Noun. 1. lassie-a girl or young woman who is unmarried. jeune fille, lass, young girl. bobby-socker, bobbysoxer-an adolescent girl wearing bobby socks (common in the 1940s). fille, girl, miss, missy, young lady, young woman-a young woman; a young lady of 18. Lolita-a sexually precocious young girl.
A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and dark matter.[1][2] The word galaxy is derived from the Greek galaxias (Î³Î±Î»Î±Î¾Î¯Î±Ï), literally milky, a reference to the Milky Way.
spiral (plural spirals) ( 1 geometry) A curve that is the locus of a point that rotates about a fixed point while continuously increasing its distance from that point. ( 2 informal) A helix. 3  A self-sustaining process with a lot of momentum involved, so it is difficult to accelerate or stop it at once.