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Radiciform
a.
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Having the nature or appearance of a radix or root.
Radicle
n.
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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.
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A rootlet; a radicel.
Radicular
a.
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Of or pertaining to roots, or the root of a plant.
Radicule
n.
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A radicle.
Radiculose
a.
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Producing numerous radicles, or rootlets.
Radii
n.
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pl. of Radius.
Radio-
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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.
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A group of Protozoa having both flagella and pseudopodia.
Radiograph
n.
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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.
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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.
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Of or pertaining to the Radiolaria.
Radiolarian
n.
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One of the Radiolaria.
Radioli
n. pl.
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The barbs of the radii of a feather; barbules.
Radiolite
n.
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A hippurite.
Radiometer
n.
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A forestaff.
Radiometer
n.
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An instrument designed for measuring the mechanical effect of radiant energy.
Radiomicrometer
n.
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A very sensitive modification or application of the thermopile, used for indicating minute changes of radiant heat, or temperature.
Radiophone
n.
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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.
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The art or practice of using the radiophone.
Radious
a.
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Consisting of rays, as light.
Radious
a.
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Radiating; radiant.
Radish
n.
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The pungent fleshy root of a well-known cruciferous plant (Raphanus sativus); also, the whole plant.
Radii
pl.
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of Radius
Radiuses
pl.
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of Radius
Radius
n.
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A right line drawn or extending from the center of a circle to the periphery; the semidiameter of a circle or sphere.
Radius
n.
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The preaxial bone of the forearm, or brachium, corresponding to the tibia of the hind limb. See Illust. of Artiodactyla.
Radius
n.
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A ray, or outer floret, of the capitulum of such plants as the sunflower and the daisy. See Ray, 2.
Radius
n.
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The barbs of a perfect feather.
Radius
n.
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Radiating organs, or color-markings, of the radiates.