stone canal


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Related to stone canal: Ring Canal, radial canal

stone canal

n.
A calcareous tube in echinoderms that leads from the madreporite to a ring-shaped canal around the mouth.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
"We found a stone canal that was probably made when widening the bastion though," Kozarova explained, as quoted by TASR.
Director of the Department Ibrahim Younes Kheir Bek said that the unearthing works carried out in 2009 revealed a wall which goes back to the Phoenician stratum, as well as a well-preserved stone canal with a lid of a flat flagstone dating back to the Byzantine Era.
Among his chief works are the Fall Revolution Series which consists of The Star Fraction (1995), The Stone Canal (1996), The Cassini Division (1998), and The Sky Road (1999).
But the raw material is better than most, planned as a series of compartments including a water garden with stone canal, balustraded terrace, lawns, clipped yew hedges and a stone summer house.
In a quartet of novels--The Star Fraction (1995), The Stone Canal (1996), The Cassini Division (1998), and The Sky Road (1999)--MacLeod sets up several societies then lets them loose in something akin to the real world, where they can compete, infiltrate each other, and try to come to terms with their internal contradictions.
The Star Fraction almost puts forward a conspiratorial interpretation of events, and in The Stone Canal, that's dismissed; all the events of The Star Fraction are alluded to in a passing paragraph.
The madreporite is attached to a ciliated "stone canal" that connects through a series of passages to the animal's fluid-filled appendages, the tube feet.
Observers often assume that seawater is drawn in through the madreporite by the stone canal cilia to hydraulically extend the tube feet.
It is generally assumed, for example, that the madreporite admits seawater into the system, and that ciliary pumping by the stone canal connected to it forces the seawater taken in to flow out to the tube feet where it replenishes fluid losses due to their activity.
The stone canals travel from under the funeral chamber into an esplanade in front of the temple.