anchor stone

anchor stone

[′aŋ·kər ‚stōn]
(geology)
A rock or pebble that has marine plants attached to it.
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References in periodicals archive ?
A tomb from 1400 BC has an anchor stone shaped like a T showing how things had progressed in 200 years.
DATELINE' UPDATE: NBC News is dropping "Dateline NBC" anchor Stone Phillips in a cost-cutting move when his contract expires at the end of June.
Reported from Jerusalem by Dateline NBC anchor Stone Phillips, The Last Days of Jesus recounts the final week in the life of the most renowned figure in history.
Hosted by Dateline NBC's anchor Stone Phillips, NBC News Presents: Ronald Reagan features four intriguing reports.
Although it would be difficult now, due to the overhanging branches of the copper beech tree, there was once a grass court on the front lawn and one of the anchor stones, used to secure the net post, is still visible.