A retinoid compound (C20H28O), closely related to vitamin A, which is a component of the visual pigments in the eye. It is also called retinaldehyde and vitamin A aldehyde.

A translucent variety of serpentine, of a honey yellow or greenish yellow color, having a waxy resinlike luster.

Retinite.

Having reticulated veins.

That part of the eye of an invertebrate which corresponds in function with the retina of a vertebrate.

Of or pertaining to resin; derived from resin; specifically, designating an acid found in certain fossil resins and hydrocarbons.

An inflammable mineral resin, usually of a yellowish brown color, found in roundish masses, sometimes with coal.

Inflammation of the retina.

A retinoid compound (C20H28O2), closely related to vitamin A. It is also called tretinoin and vitamin A acid.

Resinlike, or resinform; resembling a resin without being such.

A hydrocarbon oil C32H16, obtained by the distillation of resin, -- used as a solvent, as an antiseptic, and in printer's ink.

One of group of two to four united cells which occupy the axial part of the ocelli, or ommatidia, of the eyes of invertebrates, and contain the terminal nerve fibrillae. See Illust. under Ommatidium.

Of or pertaining to retinophorae.

The study of the retina of the eye by means of the ophthalmoscope.

The body of retainers who follow a prince or other distinguished person; a train of attendants; a suite.

One of the group of pigmented cells which surround the retinophorae of invertebrates. See Illust. under Ommatidium.

Having, or characterized by, retinul/.

A bird having small polygonal scales covering the tarsi.

Retirement; -- mostly used in a jocose or burlesque way.

A kind of retrenchment, as in the body of a bastion, which may be disputed inch by inch after the defenses are dismantled. It usually consists of two faces which make a reentering angle.

The act of retiring, or the state of being retired; also, a place to which one retires.

Private; secluded; quiet; as, a retired life; a person of retired habits.

The act of retiring, or the state of being retired; withdrawal; seclusion; as, the retirement of an officer.

One who retires.

Reserved; shy; not forward or obtrusive; as, retiring modesty; retiring manners.

A white crystalline hydrocarbon produced indirectly from retene.

A group of spiders which spin irregular webs; -- called also Retitelariae.

imp. p. p. of Retell.

Same as Retortion.

The return of, or reply to, an argument, charge, censure, incivility, taunt, or witticism; a quick and witty or severe response.

One who retorts.

Act of retorting or throwing back; reflection or turning back.

Containing retort.

To toss back or again.

A partial reworking,as of a painting, a sculptor's clay model, or the like.

One who retouches.

To trace back, as a line.

The pricking of a horse's foot in nailing on a shoe.

Capable of being retracted; retractile.

To retract; to recant.

The act of retracting what has been said; recantation.

Retractable.

Capable of retraction; capable of being drawn back or up; as, the claws of a cat are retractile.

The act of retracting, or drawing back; the state of being retracted; as, the retraction of a cat's claws.

That which retracts, or withdraws.

One who, or that which, retracts. In breech-loading firearms, a device for withdrawing a cartridge shell from the barrel. An instrument for holding apart the edges of a wound during amputation. A bandage to protect the soft parts from injury by the saw during amputation. A muscle serving to draw in any organ or part. See Illust. under Phylactolaemata.

Retreat.

A portrait; a likeness.

To transform anew or back.

To translate anew; especially, to translate back into the original language.

The withdrawing, or open renunciation, of a suit in court by the plaintiff, by which he forever lost his right of action.

To tread again.

To make a retreat; to retire from any position or place; to withdraw; as, the defeated army retreated from the field.

Furnishing or serving as a retreat.

The act of retreating; specifically, the Hegira.

To cause or suffer retrenchment; specifically, to cut down living expenses; as, it is more reputable to retrench than to live embarrassed.

The act or process of retrenching; as, the retrenchment of words in a writing.

A secdond trial, experiment, or test; a second judicial trial, as of an accused person.

To pay back; to give in return, as payment, reward, or punishment; to requite; as, to retribute one for his kindness; to retribute just punishment to a criminal.

One who makes retribution.

Of or pertaining to retribution; of the nature of retribution; involving retribution or repayment; as, retributive justice; retributory comforts.

That may be retrieved or recovered; admitting of retrieval.

The act retrieving.

A seeking again; a discovery.

Retrieval.

One who retrieves.

To trim again.

Refuse; dregs.

To act backward, or in return; to act in opposition; to be retrospective.

Action returned, or action backward.

Fitted or designed to retroact; operating by returned action; affecting what is past; retrospective.

In a retroactive manner.

To go back.

Disposed or likely to retrocede; -- said of diseases which go from one part of the body to another, as the gout.

The act of retroceding.

Any extension of a church behind the high altar, as a chapel; also, in an apsidal church, all the space beyond the line of the back or eastern face of the altar.

Copulating backward, or from behind.

Copulation from behind.

A leading or bringing back.

Reflexed; bent or turned abruptly backward.

The act of reflexing; the state of being retroflexed. Cf. Retroversion.

Refracted; as, a retrofract stem.

Begetting young by retrocopulation.

The act of retrograding, or moving backward.

To go in a retrograde direction; to move, or appear to move, backward, as a planet.

By retrograding; so as to retrograde.

Retrogression.

The act of retrograding, or going backward; retrogradation.

Tending to retrograde; going or moving backward; declining from a better to a worse state.

In a retrogressive manner.

The quality or state of being retromingent.

Organized so as to discharge the urine backward. An animal that discharges its urine backward.

Driving back; repelling.

Bent backward or downward.

A looking back on things past; view or contemplation of the past.

The act, or the faculty, of looking back on things past.

Looking backward; contemplating things past; -- opposed to prospective; as, a retrospective view.

By way of retrospect.

The inoculation of a cow with human vaccine virus.

A turning or bending backward; also, the state of being turned or bent backward; displacement backwards; as, retroversion of the uterus.

To turn back.

In a state of retroversion.

To thrust back.

Abstruse.

The act of retruding, or the state of being retruded.

To try (esp. judicially) a second time; as, to retry a case; to retry an accused person.

See Aret.

A place or establishment where flax is retted. See Ret.

The act or process of preparing flax for use by soaking, maceration, and kindred processes; -- also called rotting. See Ret.

To blunt; to turn, as an edge; figuratively, to cause to be obtuse or dull; as, to retund confidence.

The act of returning (intransitive), or coming back to the same place or condition; as, the return of one long absent; the return of health; the return of the seasons, or of an anniversary.

Capable of, or admitting of, being returned.

One who returns.

Admitting no return.

Having the end rounded and slightly indented; as, a retuse leaf.

Rule.

Realm.

A second union; union formed anew after separation, secession, or discord; as, a reunion of parts or particles of matter; a reunion of parties or sects.

To unite again; to join after separation or variance.

In a reunited manner.