Radiant (a.) Giving off rays; -- said of a bearing; as, the sun radiant; a crown radiant.
Radiant (a.) Having a raylike appearance, as the large marginal flowers of certain umbelliferous plants; -- said also of the cluster which has such marginal flowers.
Radiant (n.) The luminous point or object from which light emanates; also, a body radiating light brightly.
Radiant (n.) A straight line proceeding from a given point, or fixed pole, about which it is conceived to revolve.
Radiant (n.) The point in the heavens at which the apparent paths of shooting stars meet, when traced backward, or whence they appear to radiate.
Radiantly (adv.) In a radiant manner; with glittering splendor.
Radiary (n.) A radiate.
Radiata (n. pl.) An extensive artificial group of invertebrates, having all the parts arranged radially around the vertical axis of the body, and the various organs repeated symmetrically in each ray or spheromere.
Radiated (imp. & p. p.) of Radiate
Radiating (p. pr. & vb. n.) of Radiate
Radiate (v. i.) To emit rays; to be radiant; to shine.
Radiate (v. i.) To proceed in direct lines from a point or surface; to issue in rays, as light or heat.
Radiate (v. t.) To emit or send out in direct lines from a point or points; as, to radiate heat.
Radiate (v. t.) To enlighten; to illuminate; to shed light or brightness on; to irradiate.
Radiate (a.) Having rays or parts diverging from a center; radiated; as, a radiate crystal.
Radiate (a.) Having in a capitulum large ray florets which are unlike the disk florets, as in the aster, daisy, etc.
Radiate (a.) Belonging to the Radiata.
Radiate (n.) One of the Radiata.
Radiated (a.) Emitted, or sent forth, in rays or direct lines; as, radiated heat.
Radiated (a.) Formed of, or arranged like, rays or radii; having parts or markings diverging, like radii, from a common center or axis; as, a radiated structure; a radiated group of crystals.
Radiated (a.) Belonging to the Radiata.
Radiately (adv.) In a radiate manner; with radiation or divergence from a center.
Radiate-veined (a.) Having the principal veins radiating, or diverging, from the apex of the petiole; -- said of such leaves as those of the grapevine, most maples, and the castor-oil plant.
Radiatiform (a.) Having the marginal florets enlarged and radiating but not ligulate, as in the capitula or heads of the cornflower.
Radiation (n.) The act of radiating, or the state of being radiated; emission and diffusion of rays of light; beamy brightness.
Radiation (n.) The shooting forth of anything from a point or surface, like the diverging rays of light; as, the radiation of heat.
Radiative (a.) Capable of radiating; acting by radiation.
Radiator (n.) That which radiates or emits rays, whether of light or heat; especially, that part of a heating apparatus from which the heat is radiated or diffused; as, a steam radiator.
Radical (a.) Of or pertaining to the root; proceeding directly from the root.
Radical (a.) Hence: Of or pertaining to the root or origin; reaching to the center, to the foundation, to the ultimate sources, to the principles, or the like; original; fundamental; thorough-going; unsparing; extreme; as, radical evils; radical reform; a radical party.
Radical (a.) Belonging to, or proceeding from, the root of a plant; as, radical tubers or hairs.
Radical (a.) Proceeding from a rootlike stem, or one which does not rise above the ground; as, the radical leaves of the dandelion and the sidesaddle flower.
Radical (a.) Relating, or belonging, to the root, or ultimate source of derivation; as, a radical verbal form.
Radical (a.) Of or pertaining to a radix or root; as, a radical quantity; a radical sign. See below.
Radical (n.) A primitive word; a radix, root, or simple, underived, uncompounded word; an etymon.
Radical (n.) A primitive letter; a letter that belongs to the radix.
Radical (n.) One who advocates radical changes in government or social institutions, especially such changes as are intended to level class inequalities; -- opposed to conservative.
Radical (n.) A characteristic, essential, and fundamental constituent of any compound; hence, sometimes, an atom.
Radical (n.) Specifically, a group of two or more atoms, not completely saturated, which are so linked that their union implies certain properties, and are conveniently regarded as playing the part of a single atom; a residue; -- called also a compound radical. Cf. Residue.
Radical (n.) A radical quantity. See under Radical, a.
Radical (a.) A radical vessel. See under Radical, a.
Radicalism (n.) The quality or state of being radical; specifically, the doctrines or principles of radicals in politics or social reform.
Radicality (n.) Germinal principle; source; origination.
Radicality (n.) Radicalness; relation to a root in essential nature or principle.
Radically (adv.) In a radical manner; at, or from, the origin or root; fundamentally; as, a scheme or system radically wrong or defective.
Radically (adv.) Without derivation; primitively; essentially.
Radicalness (n.) Quality or state of being radical.
Radicant (a.) Taking root on, or above, the ground; rooting from the stem, as the trumpet creeper and the ivy.
Radicate (a.) Radicated.
Radicate (v. i.) To take root; to become rooted.
Radicated (imp. & p. p.) of Radicate
Radicating (p. pr. & vb. n.) of Radicate
Radicate (v. t.) To cause to take root; to plant deeply and firmly; to root.
Radicated (a.) Rooted
Radicated (a.) Having roots, or possessing a well-developed root.
Radicated (a.) Having rootlike organs for attachment.
Radication (n.) The process of taking root, or state of being rooted; as, the radication of habits.
Radication (n.) The disposition of the roots of a plant.
Radicel (n.) A small branch of a root; a rootlet.
Radiciflorous (a.) Rhizanthous.
Radiciform (a.) Having the nature or appearance of a radix or root.
Radicle (n.) The rudimentary stem of a plant which supports the cotyledons in the seed, and from which the root is developed downward; the stem of the embryo; the caulicle.
Radicle (n.) A rootlet; a radicel.
Radicular (a.) Of or pertaining to roots, or the root of a plant.
Radicule (n.) A radicle.
Radiculose (a.) Producing numerous radicles, or rootlets.
Radii (n.) pl. of Radius.
Radio- () A combining form indicating connection with, or relation to, a radius or ray; specifically (Anat.), with the radius of the forearm; as, radio-ulnar, radio-muscular, radio-carpal.
Radio-flagellata (n. pl.) A group of Protozoa having both flagella and pseudopodia.
Radiograph (n.) A picture produced by the Rontgen rays upon a sensitive surface, photographic or fluorescent, especially a picture of opaque objects traversed by the rays.
Radiolaria (n. pl.) Order of rhizopods, usually having a siliceous skeleton, or shell, and sometimes radiating spicules. The pseudopodia project from the body like rays. It includes the polycystines. See Polycystina.
Radiolarian (a.) Of or pertaining to the Radiolaria.
Radiolarian (n.) One of the Radiolaria.
Radioli (n. pl.) The barbs of the radii of a feather; barbules.
Radiolite (n.) A hippurite.
Radiometer (n.) A forestaff.
Radiometer (n.) An instrument designed for measuring the mechanical effect of radiant energy.
Radiomicrometer (n.) A very sensitive modification or application of the thermopile, used for indicating minute changes of radiant heat, or temperature.
Radiophone (n.) An apparatus for the production of sound by the action of luminous or thermal rays. It is essentially the same as the photophone.
Radiophony (n.) The art or practice of using the radiophone.
Radious (a.) Consisting of rays, as light.
Radious (a.) Radiating; radiant.
Radish (n.) The pungent fleshy root of a well-known cruciferous plant (Raphanus sativus); also, the whole plant.
Radii (pl. ) of Radius
Radiuses (pl. ) of Radius
Radius (n.) A right line drawn or extending from the center of a circle to the periphery; the semidiameter of a circle or sphere.
Radius (n.) The preaxial bone of the forearm, or brachium, corresponding to the tibia of the hind limb. See Illust. of Artiodactyla.
Radius (n.) A ray, or outer floret, of the capitulum of such plants as the sunflower and the daisy. See Ray, 2.
Radius (n.) The barbs of a perfect feather.
Radius (n.) Radiating organs, or color-markings, of the radiates.
Radius (n.) The movable limb of a sextant or other angular instrument.
Radius vector () A straight line (or the length of such line) connecting any point, as of a curve, with a fixed point, or pole, round which the straight line turns, and to which it serves to refer the successive points of a curve, in a system of polar coordinates. See Coordinate, n.
Radius vector (n.) An ideal straight line joining the center of an attracting body with that of a body describing an orbit around it, as a line joining the sun and a planet or comet, or a planet and its satellite.
Radices (pl. ) of Radix
Radixes (pl. ) of Radix
Radix (n.) A primitive word, from which spring other words; a radical; a root; an etymon.
Radix (n.) A number or quantity which is arbitrarily made the fundamental number of any system; a base. Thus, 10 is the radix, or base, of the common system of logarithms, and also of the decimal system of numeration.
Radix (n.) A finite expression, from which a series is derived.
Radix (n.) The root of a plant.
Radulae (pl. ) of Radula