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

Same as Perigone.

A careless or inaccurate delineation of anything.

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/.

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.

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

To be in danger.

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

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

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.

Around, or at the side of, a lymphatic vessel.

Pertaining to, or containing, perilymph. Perilymphangial.

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

Of or pertaining to the perimeter, or to perimetry; as, a perimetric chart of the eye.

The art of using the perimeter; measurement of the field of vision.

A crystal of one species inclosing one of another species. See Endomorph.

Surrounding a muscle or muscles. Of or pertaining to the perimysium.

The connective tissue sheath which surrounds a muscle, and sends partitions inwards between the bundles of muscular fibers.

See Perineum.

Of or pertaining to the perineum.

The act or process of restoring an injured perineum.

The operation of sewing up a ruptured perineum.

Inflammation of the cellular tissue around the kidney.

The region which is included within the outlet of the pelvis, and is traversed by the urinogenital canal and the rectum.

Surrounding nerves or nerve fibers; of or pertaining to the perineurium.

The connective tissue sheath which surrounds a bundle of nerve fibers. See Epineurium, and Neurilemma.

Of or pertaining to a nucleus; situated around a nucleus; as, the perinuclear protoplasm.

To come to a period; to conclude. [Obs.] /You may period upon this, that,/ etc.

A salt of periodic acid.

Pertaining to, derived from, or designating, the highest oxygen acid (HIO4) of iodine.

A magazine or other publication which appears at stated or regular intervals.

Of or pertaining to a period or periods, or to division by periods.

One who publishes, or writes for, a periodical.

In a periodical{4} manner; as, flooding occurs periodically in the valley.

Periodicity.

The quality or state of being periodical, or regularly recurrent; as, the periodicity in the vital phenomena of plants.

An iodide containing a higher proportion of iodine than any other iodide of the same substance or series.

Surrounding the teeth.

A disease that attacks the gum and bone around the teeth.

A table or other means for calculating the periodical functions of women.

Those who live on the same parallel of latitude but on opposite meridians, so that it is noon in one place when it is midnight in the other. Compare Ant/ci.

The external smooth horny layer of the hoof of the horse and allied animals.

Of or pertaining to the periople; connected with the periople.

Situated around bone; of or pertaining to the periosteum.

The membrane of fibrous connective tissue which closely invests all bones except at the articular surfaces.

Inflammation of the periosteum.

A chitinous membrane covering the exterior of many shells; -- called also epidermis.

Surrounding, or pertaining to the region surrounding, the internal ear; as, the periotic capsule. A periotic bone.

A peripatetic.

One who walks about; a pedestrian; an itinerant.

Peripatetic.

The doctrines or philosophical system of the peripatetics. See Peripatetic, n., 2.

The type genus of Peripatopsidae, consisting of onychophorans (lowly organized invertebrates related evolutionarily to the arthropods, also called /walking worms/ AND /velvet worms/) found chiefly in Asiatic and African tropical regions, in South Africa, Australia, New Zealand, and tropical America.

Surrounding, or situated about, the petals.

Of or pertaining to a periphery; constituting a periphery; peripheric.

See Peripheral.

The outside or superficial portions of a body; the surface.

To use circumlocution.

See Periphrase.

Expressing, or expressed, in more words than are necessary; characterized by periphrase; circumlocutory.

Same as Periblast.

Of or pertaining to peripneumonia.

Pneumonia.

The region surrounding the anus, particularly of echinoderms.

Inflammation of the tissues about the rectum.

Having columns on all sides; -- said of an edifice. See Apteral.

Peripteral.

The region surrounding a moving body, such as the wing of a bird or a gliding a/roplane, within which cyclic or vortical motion of the air occur.

A kind of tobacco with medium-sized leaf, small stem, tough and gummy fiber, raised in Louisiana, and cured in its own juices, so as to be very dark colored, usually black. It is marketed in tightly wrapped rolls called carottes.

The outer, hardened integument which covers most hydroids.

Having the shadow moving all around.

Those who live within a polar circle, whose shadows, during some summer days, will move entirely round, falling toward every point of the compass.

A general or comprehensive view.

Viewing all around, or on all sides.

To cause perish.

Perishableness.

Liable to perish; subject to decay, destruction, or death; as, perishable goods; our perishable bodies.

The quality or state of being perishable; liability to decay or destruction.

In a perishable degree or manner.

The act of perishing.

Same as Perisome.

The entire covering of an invertebrate animal, as echinoderm or c/lenterate; the integument.

The albumen of a seed, especially that portion which is formed outside of the embryo sac.

Exactly spherical; globular.

A word which has the circumflex accent on the last syllable.

The outer covering of a spore.

Odd; not even; -- said of elementary substances and of radicals whose valence is not divisible by two without a remainder. Contrasted with artiad.

To perish.

One of the Perissodactyla.

A division of ungulate mammals, including those that have an odd number of toes, as the horse, tapir, and rhinoceros; -- opposed to Artiodactyla.

Redundant or excessive in words.

Superfluity of words.

Peristaltic contraction or action.

Pertaining to a wormlike wave motion of the intestines, and by analogy, of other flexible tubular structures. In the body it is produced by a progressive contraction of the muscular fibers of their walls, forcing their contents onwards in the direction of the wave; as, peristaltic movement.

A genus of orchidaceous plants. See Dove plant.

The herb vervain (Verbena officinalis).

A variety of albite, whitish and slightly iridescent like a pigeon's neck.

Like or pertaining to the pigeons or Columb/.

Having pigeonlike feet; -- said of those gallinaceous birds that rest on all four toes, as the curassows and megapods.

Peristaltic action, especially of the intestines.

Same as Peristome.

The fringe of teeth around the orifice of the capsule of mosses. It consists of 4, 8, 16, 32, or 64 teeth, and may be either single or double.

Of or pertaining to a peristome.

Same as Peristome.

Turning around; rotatory; revolving; as, a peristrephic painting (of a panorama).

A range of columns with their entablature, etc.; specifically, a complete system of columns, whether on all sides of a court, or surrounding a building, such as the cella of a temple. Used in the former sense, it gives name to the larger and inner court of a Roman dwelling, the peristyle. See Colonnade.

The interval between the diastole and systole of the heart. It is perceptible only in the dying.

Skilled.

An organ in certain fungi and lichens, surrounding and enveloping the masses of fructification.

Cleaving in more directions than one, parallel to the axis.

Same as Peritoneum.

Of or pertaining to the peritoneum.

The smooth serous membrane which lines the cavity of the abdomen, or the whole body cavity when there is no diaphragm, and, turning back, surrounds the viscera, forming a closed, or nearly closed, sac.

Inflammation of the peritoneum.

Surrounding the trache/.

That part of the integument of an insect which surrounds the spiracles. The edge of the aperture of a univalve shell.

A division of ciliated Infusoria having a circle of cilia around the oral disk and sometimes another around the body. It includes the vorticellas. See Vorticella.

The wheel which, together with the axle, forms the axis in peritrochio, which see under Axis.

Rotatory; circuitous.

Peritropal.