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Perfectional

Of or pertaining to perfection; characterized by perfection.

Perfectionist

One pretending to perfection; esp., one pretending to moral perfection; one who believes that persons may and do attain to moral perfection and sinlessness in this life.

Perfectionment

The act of bringing to perfection, or the state of having attained to perfection.

Perfective

Tending or conducing to make perfect, or to bring to perfection; -- usually followed by of.

Perfectly

In a perfect manner or degree; in or to perfection; completely; wholly; thoroughly; faultlessly.

Perfectness

The quality or state of being perfect; perfection.

Perfervid

Very fervid; too fervid; glowing; ardent.

Perficient

One who performs or perfects a work; especially, one who endows a charity.

Perfidious

Guilty of perfidy; violating good faith or vows; false to trust or confidence reposed; treacherous; faithless; as, a perfidious friend.

Perfidy

The act of violating faith or allegiance; violation of a promise or vow, or of trust reposed; faithlessness; treachery.

Perfix

To fix surely; to appoint.

Perfoliate

Having the basal part produced around the stem; -- said of leaves which the stem apparently passes directory through.

Perforata

A division of corals including those that have a porous texture, as Porites and Madrepora; -- opposed to Aporosa. A division of Foraminifera, including those having perforated shells.

Perforate

To bore through; to pierce through with a pointed instrument; to make a hole or holes through by boring or piercing; to pierce or penetrate the surface of.

Perforated Perforate

Pierced with a hole or holes, or with pores; having transparent dots resembling holes.

Perforation

The act of perforating, or of boring or piercing through.

Perforator

One who, or that which, perforates; esp., a cephalotome.

Perform

To do, execute, or accomplish something; to acquit one's self in any business; esp., to represent sometimes by action; to act a part; to play on a musical instrument; as, the players perform poorly; the musician performs on the organ.

Performable

Admitting of being performed, done, or executed; practicable.

Performance

The act of performing; the carrying into execution or action; execution; achievement; accomplishment; representation by action; as, the performance of an undertaking of a duty.

Performer

One who performs, accomplishes, or fulfills; as, a good promiser, but a bad performer; especially, one who shows skill and training in any art; as, a performer of the drama; a performer on the harp.

Perfume

The scent, odor, or odoriferous particles emitted from a sweet-smelling substance; a pleasant odor; fragrance; aroma.

perfumed

Filled or impregnated with perfume; as, perfumed stationery; a perfumed boudoir.

Perfumer

One who, or that which, perfumes.

Perfunctory

Done merely to get rid of a duty; performed mechanically and as a thing of rote; done in a careless and superficial manner; characterized by indifference; as, perfunctory admonitions; a perfunctory greeting.

Perfuncturate

To perform in a perfunctory manner; to do negligently.

Perfuse

To suffuse; to fill full or to excess.

Perfusive

Of a nature to flow over, or to spread through.

Pergola

Lit., an arbor or bower; An arbor or trellis treated architecturally, as with stone columns or similar massive structure.

Pergolo

A continuous colonnade or arcade; -- applied to the decorative groups of windows, as in Venetian palazzi.

Perhaps

Posibly; by chance; peradventure; perchance; it may be.

Peri

An imaginary being, male or female, like an elf or fairy, represented as a descendant of fallen angels, excluded from paradise till penance is accomplished.

Perianth

The leaves of a flower generally, especially when the calyx and corolla are not readily distinguished. A saclike involucre which incloses the young fruit in most hepatic mosses. See Illust. of Hepatica.

Periapt

A charm worn as a protection against disease or mischief; an amulet.

Periastron

That point, in the real or apparent orbit of one star revolving around another, at which the former is nearest to the latter.

Periblast

The protoplasmic matter which surrounds the entoblast, or cell nucleus, and undergoes segmentation.

Periblem

Nascent cortex, or immature cellular bark.

Peribolos

In ancient architecture, an inclosed court, esp., one surrounding a temple.

Peribranchial

Surrounding the branchi/; as, a peribranchial cavity.

Peribronchial

Around the bronchi or bronchial tubes; as, the peribronchial lymphatics.

Pericambium

A layer of thin-walled young cells in a growing stem, in which layer certain new vessels originate.

Pericardium

The double baglike fold of serous membrane which incloses the heart.

Pericarp

The ripened ovary; the walls of the fruit. See Illusts. of Capsule, Drupe, and Legume.

Pericellular

Surrounding a cell; as, the pericellular lymph spaces surrounding ganglion cells.

Perichaeth

The leafy involucre surrounding the fruit stalk of mosses; perichaetium; perichete.

Perichaetous

Surrounded by set/; -- said of certain earthworms (genus Perich/tus).

Perichondrial

Of or pertaining to the perichondrium; situated around cartilage.

Perichondrium

The membrane of fibrous connective tissue which closely invests cartilage, except where covering articular surfaces.

Perichordal

Around the notochord; as, a perichordal column. See Epichordal.

Periclasite Periclase

A grayish or dark green mineral, consisting essentially of magnesia (magnesium oxide), occurring in granular forms or in isometric crystals.

Periclinium

The involucre which surrounds the common receptacle in composite flowers.

Pericope

A selection or extract from a book; especially (Theol.), a selection from the Bible, appointed to be read in the churches or used as a text for a sermon.

Pericranium

The periosteum which covers the cranium externally; the region around the cranium.

Pericystitis

Inflammation of the tissues surrounding the bladder.

Peridiastole

The almost inappreciable time which elapses between the systole and the diastole of the heart.

Peridium

The envelope or coat of certain fungi, such as the puffballs and earthstars.

Peridotite

An eruptive rock characterized by the presence of chrysolite (peridot). It also usually contains pyroxene, enstatite, chromite, etc. It is often altered to serpentine.

Peridrome

The space between the columns and the wall of the cella, in a Greek or a Roman temple.

Periganglionic

Surrounding a ganglion; as, the periganglionic glands of the frog.

Perigastric

Surrounding the stomach; -- applied to the body cavity of Bryozoa and various other Invertebrata.

Perigenesis

A theory which explains inheritance by the transmission of the type of growth force possessed by one generation to another.

Perigeum Perigee

That point, in the orbit of the moon or other body orbiting the earth, which is nearest to the earth; -- opposed to apogee. It is sometimes, but rarely, used of the nearest points of bodies not orbiting the earth, such as of a comet, a planet, etc. Called also epigee, epigeum.

Perigone

Any organ inclosing the essential organs of a flower; a perianth. In mosses, the involucral bracts of a male flower.

Perigraph

A careless or inaccurate delineation of anything.

Perigynium

Some unusual appendage about the pistil, as the bottle-shaped body in the sedges, and the bristles or scales in some other genera of the Sedge family, or Cyperace/.

Perigynous

Having the ovary free, but the petals and stamens borne on the calyx; -- said of a flower such as that of the cherry or peach.

Perihelium Perihelion

That point of the orbit of a planet or comet which is nearest to the sun; -- opposed to aphelion.

Perilla

A genus of labiate herbs, of which one species (Perilla ocimoides, or Perilla Nankinensis) is often cultivated for its purple or variegated foliage.

Perilous

Full of, attended with, or involving, peril; dangerous; hazardous; as, a perilous undertaking.

Perilymph

The fluid which surrounds the membranous labyrinth of the internal ear, and separates it from the walls of the chambers in which the labyrinth lies.

Perilymphatic

Pertaining to, or containing, perilymph. Perilymphangial.

Perimeter

The outer boundary of a body or figure, or the sum of all the sides.

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