RADEAU
Ra`deau", n. Etym: [F.]
Defn: A float; a raft. Three vessels under sail, and one at anchor, above Split Rock, and behind it the radeau Thunderer. W. Irving.
RADIAL
Ra"di*al, a. Etym: [Cf. F. radial. See Radius.]
Defn: Of or pertaining to a radius or ray; consisting of, or like, radii or rays; radiated; as, (Bot.) radial projections; (Zoöl.) radial vessels or canals; (Anat.) the radial artery. Radial symmetry. (Biol.) See under Symmetry.
RADIALE
Ra`di*a"le, n.; pl. Radialia. Etym: [NL. See Radial.]
1. (Anat.)
Defn: The bone or cartilage of the carpus which articulates with the radius and corresponds to the scaphoid bone in man.
2. pl. (Zoöl.)
Defn: Radial plates in the calyx of a crinoid.
RADIAL ENGINE
Radial engine. (Mach.)