a. Zool. [mod. f. L. ad to, at + radius ray + -AL 1.] Situated at or on a ray, in Radiate animals.
1880. E. R. Lankester, in Nature, XXI. 414. An organ may be … per-radial, inter-radial, or adradial in position.
a. Zool. [mod. f. L. ad to, at + radius ray + -AL 1.] Situated at or on a ray, in Radiate animals.
1880. E. R. Lankester, in Nature, XXI. 414. An organ may be … per-radial, inter-radial, or adradial in position.
