interradial

[ in-ter-rey-dee-uhl ]

adjective

1. situated between the radii or rays:

   interradial petals.

interradial

/ ˌɪntəˈreɪdɪəl /

adjective

1. situated between two radii or rays, esp between the radii of a sea urchin or similar animal

Derived Forms

• ˌinterˈradially, adverb

Other Words From

• inter·radi·al·ly adverb

Word History and Origins

Origin of interradial¹

First recorded in 1865–70; inter- + radial

Example Sentences

Interrā′dius, an interradial part, esp. of a hydrozoan.

From Project Gutenberg

Each plate of the upper circlet supports an arm, and is called a “radial”; the plates of the lower circlet, the “basals,” rest on the stem and alternate with those of the upper circlet, i.e. are interradial in position.

From Project Gutenberg

Sub-class I. Monocyclica.—Crinoidea in which the base consists of BB only, the aboral prolongations of the chambered organ being interradial; new columnals are introduced at the extreme proximal end of the stem.

From Project Gutenberg

Division B. Eublastoidea.—Blastoidea in which the thecal plates have assumed a definite number and position in 3 circlets, as follows: 3 basals, 2 large and 1 small; 5 radials, often fork-shaped, forming a closed circlet; 5 deltoids, interradial in position, supported on the shoulders or processes of the radials, and often surrounding the peristome with their oral ends.

From Project Gutenberg

T, The five interradial tentacles.

From Project Gutenberg