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A narrow convex molding often having the form of beading.

[Latin astragalus, from Greek astragalos; see ost- in Indo-European roots.]


1. (Architecture) architect
a. Also called: bead a small convex moulding, usually with a semicircular cross section
b. a moulding having the form of a string of beads
2. (Furniture) carpentry a glazing bar, esp in a bookcase
3. (Anatomy) anatomy the ankle or anklebone
[C17: from Latin astragalus, from Greek astragalos anklebone, hence, small round moulding]


(ˈæs trə gəl)

1. a small convex molding cut into the form of a string of beads. Compare bead and reel.
2. a plain convex molding; bead.
3. a molding attached to one or both meeting stiles of a pair of double doors in order to prevent drafts.
[1555–65; < Latin astragalus < Greek astrágalos a vertebra, molding]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.astragal - the bone in the ankle that articulates with the leg bones to form the ankle jointastragal - the bone in the ankle that articulates with the leg bones to form the ankle joint
bone, os - rigid connective tissue that makes up the skeleton of vertebrates
ankle, ankle joint, articulatio talocruralis, mortise joint - a gliding joint between the distal ends of the tibia and fibula and the proximal end of the talus
2.astragal - a beaded molding for edging or decorating furnitureastragal - a beaded molding for edging or decorating furniture
moulding, molding - a decorative strip used for ornamentation or finishing
bead and quirk, quirk bead - beading formed with a narrow groove separating it from the surface it decorates
References in periodicals archive ?
"Overall, the design of the mosaic, additionally equipped with a transversal field in front decorated with astragals and rosettes, is typical for the triclinia -- the most imposing of the dining rooms in a Roman house," said Majcherek.
"The Ancient and Modern Game of Astragals." Folklore, vol.
DUNBLANE Alteration to existing bathroom to form ensuite to bedroom, provide a linen cupboard off the landing, removal of store cupboard and reinstate wall in study, refurbishment of office including removal of shower, replace windows in office and add insulation to walls, floor and roof, install glazed patio door in kitchen and replace kitchen casement windows with timber sash and case windows with astragals at Old Glassingall FK15 0JG for Mrs Ailsa Stanwix; Single storey rear and side extensions at Ardoch, 6 Kilbryde Crescent FK15 9AZ for Mr and Mrs Andrew.
Pressure relationships, partition wall locations, door locations, door swing direction (to seat door on its jamb gasket in the direction of pressure drop), door undercut cross sectional area and door sealing methods (i.e., astragals, jamb gaskets) were thoroughly considered and included as part of the facilities programming.
Gogo's were inspired by a game played in Ancient Greece called "astragals", where children played with sheep's knucklebones.
Cardano treats games of chance using dice, astragals (or knucklebones), and playing cards; in the case of cards, he focuses mainly on the game primero.