Also found in: Medical.


(Biology) situated between two radii or rays, esp between the radii of a sea urchin or similar animal
ˌinterˈradially adv


(ˌɪn tərˈreɪ di əl)

situated between radii or rays.
in`ter•ra′di•al•ly, adv.
Mentioned in ?
References in periodicals archive ?
of equivalent size include a relatively smaller central plate, as well as narrower interradial disk plates.
caninus varies from uniformly white to brownish-orange, and often some of the interradial membranes are dark brown.
and then, as the interradial spaces widen, to add branches to the radial arteries, thus encouraging uniform development of the whole area rather than ribbon-like settlement along the radials.