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Like the diamond in hardness or luster.

Having coalescent or clustered filaments; -- said of stamens; as, adelphous stamens. Usually in composition; as, monadelphous. Gray.

genus of plants, one species of which (A. Mexicanum) has lavender-blue flowers in dense clusters.

State of being collected in a mass; a mass; cluster.

(Anat.) Formed into clusters or groups of lobules; as, aggregate glands.

A genus of leguminous shrubs, having long clusters of purple flowers; false or bastard indigo. Longfellow.

Bearing both staminiferous and pistilliferous flowers in the same cluster.

A division of nudibranchiate Mollusca, in which the gills form a wreath or cluster upon the posterior part of the back. See Nudibranchiata, and Doris.

The arrangement of flowers in a cluster; the science of the relative position of flowers; inflorescence.

A hard, compact variety of mineral coal, of high luster, differing from bituminous coal in containing little or no bitumen, in consequence of which it burns with a nearly non luminous flame. The purer specimens consist almost wholly of carbon. Also called glance coal and blind coal.

l relating to the zeolites, usually occurring in square prisms or octahedrons with pearly luster on the cleavage surface. It is a hydrous silicate of calcium and potassium.

te or usually rose- colored flowers with a delicate fragrance, growing in small axillary clusters, and appearing early in the spring; in New England known as mayflower; -- called also ground laurel. Gray.

A siliceous variety of calcite, or carbonate of lime, having a silvery-white, pearly luster, and a waving or curved lamellar structure.

Sulphide of silver; -- also called vitreous silver, or silver glance. It has a metallic luster, a lead-gray color, and is sectile like lead.

chemical relations ranking with the nonmetals. It is of a steel-gray color and brilliant luster, though usually dull from tarnish. It is very brittle, and sublimes at 356º Fahrenheit. It is sometimes found native, but usually combined with silver, cobalt, nickel, iron, antimony, or sulphur. Orpiment and realgar are tw…

A mineral of a tin-white color and metallic luster, containing arsenic, sulphur, and iron; -- also called arsenical pyrites and mispickel.

Jews' pitch, or compact native bitumen. It is brittle, of a black or brown color and high luster on a surface of fracture; it melts and burns when heated, leaving no residue. It occurs on the surface and shores of the Dead Sea, which is therefore called Asphaltites, or the Asphaltic Lake. It is found also in many parts…

A small cluster of stars.

g to, coming from, or resembling, the stars; starry; starlike. Shines only with an astral luster. I. Taylor. Some astral forms I must invoke by prayer. Dryden. Astral lamp, an Argand lamp so constructed that no shadow is cast upon the table by the flattened ring-shaped reservoir in which the oil is contained. -- Astra…

The annular molding or group of moldings dividing a long shaft or clustered column into two or more parts.