fluted pillar tops

'THE MARTIAN CHRONICLES' by Ray Bradburyを読み始めました。
She watched the blue sky of Mars as if it might at any moment grip in on itself, contract, and expel a shining miracle down upon the sand.
Nothing happened.
Tired of waiting, she walked through the misting pillars. A gentle rain sprang from the fluted pillar tops, cooling the scorched air, falling gently on her.
楽器のフルートではない "flute" を以前（6/13/2016）取り上げましたが、上の引用個所に出てきた "fluted pillar tops" の "flute" はその "flute" の意味（a tall, narrow wine glass）ではないことは確かです。辞書を見ます。
・Oxford English Dictionary: Architecture n. An ornamental vertical groove in a column.; v. Make flutes or grooves in.: the wood has been fluted to resemble Greek columns:

・Collins Dictionary: n. a rounded shallow concave groove on the shaft of a column, pilaster, etc; v. to make long, rounded grooves in (a column, etc.)

・Cambridge English Dictionary: If an object, especially a round object, is fluted, its edges have many curves that go in and out: fluted columns/pillars