In skeletal anatomy, "radial" refers to the radius, the smaller of the two bones on the thumb side of the forearm. (The bigger bone in the forearm is the ulna). In ophthalmology, a radial keratotomy is a procedure in which incisions (cuts) are made in the cornea to correct nearsightedness (myopia). The procedure is said to be radial because the incisions resemble the spokes in a bicycle wheel. The word "radial" comes from the Latin "radius" meaning a spoke in a wheel which this bone was thought to resemble. The word "radiation" is derived from the same Latin word — "radius."
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1. Relating to the radius (bone of the forearm), to any structures named from it, or to the r. or lateral aspect of the upper limb as compared to the ulnar or medial aspect. SYN: radialis [TA]. 2. Relating to any radius. 3. Radiating; diverging in all directions from any given center. [L. radialis, fr. radius, ray, lateral bone of the forearm]

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ra·di·al 'rād-ē-əl adj
1) arranged or having parts arranged like rays
2) of, relating to, or situated near the radius or the thumb side of the hand or forearm <the \radial aspect of the hand>
3) developing uniformly around a central axis <\radial cleavage of an egg>
ra·di·al·ly -ē-ə-lē adv
radial n a body part (as an artery) lying near or following the course of the radius

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relating to or associated with the radius (a bone in the forearm).

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ra·di·al (raґde-əl) [L. radialis] 1. pertaining to a radius. 2. pertaining to the lateral aspect of the forearm as opposed to the medial (ulnar) aspect. 3. radiating; spreading outward from a common center.

Medical dictionary. 2011.

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  • radial — radial, iale, iaux [ radjal, jo ] adj. et n. f. • av. 1478; du lat. radius 1 ♦ Anat. Qui a rapport au radius ou à la partie de l avant bras correspondant au radius. Nerf radial : branche postérieure du plexus brachial. Artère radiale. 2 ♦ (1898)… …   Encyclopédie Universelle

  • radial — RADIÁL, Ă, radiali, e, adj. (Adesea adverbial) Care pleacă dintr un centru ca razele unui cerc sau ale unei sfere; dispus în formă de raze; radiar, radiat. [pr.: di al] – Din fr., germ. radial. Trimis de RACAI, 13.09.2007. Sursa: DEX 98  RADIÁL… …   Dicționar Român

  • Radial — can refer to: * Vector (geometric), a line * Radius, adjective form of * A radial pattern is one that appears to radiate from a point, like the spokes from the hub of a wheel * Radial (radio), used to determine average elevation above mean sea… …   Wikipedia

  • Radial — Ra di*al (r[=a] d[i^]*al), a. [Cf. F. radial. See {Radius}.] Of or pertaining to a radius or ray; consisting of, or like, radii or rays; radiated; as, (Bot.) radial projections; (Zo[ o]l.) radial vessels or canals; (Anat.) the radial artery.… …   The Collaborative International Dictionary of English

  • radial — radial, ale 1. (ra di al, a l ) adj. Terme d anatomie. Qui a rapport au radius. Les muscles radiaux. L artère radiale.    S. m. Nom de certains muscles qui occupent la région radiale : le radial antérieur, le radial court externe, le radial long… …   Dictionnaire de la Langue Française d'Émile Littré

  • Radial — steht für: Radial (Luftfahrt), die Richtung eines Peilstrahls radial steht für: geradlinig von einem Punkt ausgehend bzw. entlang des Radius eine Bezeichnung in der Anatomie, siehe Lage und Richtungsbezeichnungen …   Deutsch Wikipedia

  • Radial — Magnétique Radial magnétique d un point : Demi droite partant d un point repéré par une mesure angulaire à partir du nord magnétique (ou relèvement magnétique). Radial (magnétique) d un VHF Omnidirectional Range (ou VOR) : Axe… …   Wikipédia en Français

  • radial — adjetivo 1. Área: geometría Del radio: longitud radial. 2. Que está dispuesto de forma similar al conjunto de radios de una circunferencia: aletas radiales de un pez. España tiene una red de carreteras radial. 3. [Neumático …   Diccionario Salamanca de la Lengua Española

  • radial — ► ADJECTIVE 1) of or arranged like rays or the radii of a circle; diverging in lines from a common centre. 2) (also radial ply) (of a tyre) in which the layers of fabric have their cords running at right angles to the circumference of the tyre.… …   English terms dictionary

  • radial — [rā′dē əl] adj. [< ML radialis: see RADIUS] 1. a) of or like a ray or rays; branching out in all directions from a common center b) having or characterized by parts that branch out in this way 2. of or situated like a radius 3. Anat. of or… …   English World dictionary

  • radial — relacionado con el radio, un hueso de antebrazo; un nervio del plexo braquial Diccionario ilustrado de Términos Médicos.. Alvaro Galiano. 2010. radial Perteneciente al radio …   Diccionario médico

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