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Change of a non-sibilant letter to a sibilant, as of -tion to - shun, duke to ditch.

The act of assigning or allotting; apportionment. This order being taken in the senate, as touching the appointment and assignation of those provinces. Holland.

mblance, likeness, or identity; also, the state of being so assimilated; as, the assimilation of one sound to another. To aspire to an assimilation with God. Dr. H. More. The assimilation of gases and vapors. Sir J. Herschel.

Assimilation. [Obs.] Bacon.

The act of associating, or state of being associated; union; connection, whether of persons of things. "Some . . . bond of association." Hooker. Self-denial is a kind of holy association with God. Boyle.

Of or pertaining to association, or to an association.

The doctrine or theory held by associationists.

One who explains the higher functions and relations of the soul by the association of ideas; e. g., Hartley, J. C. Mill.

The act of accustoming, or the state of being accustomed; habituation. [Obs.] Custom and studies efform the soul like wax, and by assuefaction introduce a nature. Jer. Taylor.

f assuming, or taking to or upon one's self; the act of taking up or adopting. The assumption of authority. Whewell.

Of or pertaining to Assyriology; as, Assyriological studies.

One versed in Assyriology; a student of Assyrian archæology.

The science or study of the antiquities, language, etc., of ancient Assyria.

A class of Echinodermata including the true starfishes. The rays vary in number and always have ambulacral grooves below. The body is starshaped or pentagonal.

The point on the side of the skull where the lambdoid, parieto- mastoid and occipito-mastoid sutures.

Stipulation; agreement. [Obs.] Bp. Hall.

The act of binding; restriction; also, obligation. Milton.

Subtle; cunning; astute. [R.] Sir W. Scott. -- As*tu"cious*ly, adv. [R.]

Separation by atmolysis.

The reduction of fluids into fine spray.