triradiate

[ trahy-rey-dee-it, -eyt or trahy-rey-dee-ey-tid ]

/ traɪˈreɪ di ɪt, -ˌeɪt or traɪˈreɪ diˌeɪ tɪd /

having three rays or raylike processes.

Origin of triradiate

1840–50; tri- + radiate (adj.)

tri·ra·di·ate·ly, adverb

Some Teleosteans, like Diodon hystrix, have scales with triradiate roots from which arise long sharp spines directed backwards.

The Vertebrate Skeleton |Sidney H. Reynolds
Columella with three or four triradiate verticils, as long as the slender pyramidal horn.

Report on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-1876, Second Part: Subclass Osculosa; Index |Ernst Haeckel
Columella straight, with two or three triradiate verticils of horizontal lateral branches, which are inserted in the shell-wall.

Report on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-1876, Second Part: Subclass Osculosa; Index |Ernst Haeckel
Columella with four to six triradiate verticils, as long as the stout triangular pyramidal horn.

Report on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-1876, Second Part: Subclass Osculosa; Index |Ernst Haeckel

triradiate

/ (traɪˈreɪdɪɪt, -ˌeɪt) /

biology having or consisting of three rays or radiating branches

triradiately, adverb