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Transparent; clear; limpid; translucent; not opaque. "Pellucid crystal." Dr. H. More. "Pellucid streams." Wordsworth.

The quality or state of being pellucid; transparency; translucency; clearness; as, the pellucidity of the air. Locke.

In a pellucid manner.

Capable of neutralizing, or combining with, five molecules of a monobasic acid; having five hydrogen atoms capable of substitution by acid residues; -- said of certain complex bases.

d; contented; unruffied; undisturbed; serene; peaceful; tranquil; quiet; gentle. "That placid aspect and meek regard." Milton. "Sleeping . . . the placid sleep of infancy." Macaulay.

The quality or state of being placid; calmness; serenity. Hawthorne.

In a placid manner.

The quality or state of being placid.

A form of dentine which shows sinuous lines of structure in a transverse section of the tooth.

Capable of neutralizing, or of combining with, several molecules of a monobasic acid; having more than one hydrogen atom capable of being replaced by acid radicals; -- said of certain bases; as, calcium hydrate and glycerin are polyacid bases.

Slaughter of the people. [R.]

Having a proboscis; proboscidial.

An order of large mammal

Proboscidian.

Proboscidate.

Pertaining to the Proboscidea. -- n.

An extensive division of pectinibranchiate gastropods, including those that have a long retractile proboscis, with the mouth at the end, as the cones, whelks, tritons, and cowries. See Illust. of Gastropoda, and of Winkle.

Having the form or uses of a proboscis; as, a proboscidiform mouth.

A falling down; a prolapsus. [R.] Parr.

Falling from its proper place.