An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

1) Any combination of resources put together to be shared in community, such as memory pool, storage pool.
2) To combine into a common fund, as for a joint enterprise.

1) M.E., O.E. pol, akin to Du. poel, O.H.G. pfuol, Ger. Pfuhl "puddle."
2) Verb from M.Fr. poule (literally "hen") "the receptacle for the stakes played for in certain games with cards, the collective stakes of the players at these games," from M.L. pulla "hen," from L. pullus "young animal," related to L. putus, putillus "small boy," puer "son, boy;" Av. puθra- "son;" O.Pers. puça- "son;" Mod.Pers. pur, pesar "son, boy;" cf. Skt. putrá- "son, child, young of an animal."

Kul "pond, pool, reservoir," variants kulâb, qulé, farqar, related to kulidan "to dig, excavate," Mid.Pers. kwl "pit, sink, cavity."

The act or result of putting resources into a pool or common stock by agreement.

Verbal noun of → pool.

A powerful water current moving rapidly in a circular manner, as that produced by the meeting of opposing currents, sucking down anything that comes within. → Whirlpool galaxy.

From whirl "to turn around," from M.E. whirlen, from O.N. hvirfla "to whirl," cognate with O.E. hweorfan "to turn;" + → pool "a body of water."

Gerdâb "whirlpool," from gerd from gardidan "to turn" (→ -tropic) + âb, → water.

A large → spiral galaxy of type Sc seen → face-on in the constellation → Canes Venatici and lying about 31 million → light-years away. Also known as M51 and NGC 5194. It is interacting with a small irregular galaxy NGC 5195.

→ whirlpool; → galaxy.