iridium

iridium

 (Ir) [ĭ-rid´e-um, i-rid´e-um]

a chemical element, atomic number 77, atomic weight 192.2. (See Appendix 6.)

i·rid·i·um (Ir),

(ī-rid'ē-ăm),

A white, silvery metallic element, atomic no. 77, atomic wt. 192.22; ¹⁹²Ir is a radioisotope (half-life of 73.83 days) that has been used in the interstitial treatment of certain tumors.

[L. iris, rainbow]

ir·id·i·um

(Ir) (ī-rid'ē-ŭm)

A white, silvery metallic element, atomic no. 77, atomic wt. 192.22; ¹⁹²Ir is a radioisotope that has been used in the interstitial treatment of some tumors.

[L. iris, rainbow]

ir·id·i·um

(Ir) (ī-rid'ē-ŭm)

A white, silvery metallic element. ¹⁹²Ir is a radioisotope that has been used in the interstitial treatment of tumors.

[L. iris, rainbow]