Bullaun
A bullaun (Irish: bullán; from a word cognate with "bowl" and French bol) is the term used for the depression in a stone which is often water filled. Natural rounded boulders or pebbles may sit in the bullaun.
A bullaun (Irish: bullán; from a word cognate with "bowl" and French bol) is the term used for the depression in a stone which is often water filled. Natural rounded boulders or pebbles may sit in the bullaun.
A bullaun (Irish: bullán; from a word cognate with "bowl" and French bol) is the term used for the depression in a stone which is often water filled. Natural rounded boulders or pebbles may sit in the bullaun.
Source: Wikipedia "Bullaun" · CC BY-SA 4.0
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