Iodine

Iodine, a non-metallic element originally obtained from kelp, but now found in South America in combination with sodium, used largely both free and in combination in medicine and surgery, in photography, and in making aniline dyes.

Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)

Io * Iodoform
Interlaken
International, The
Intuition
Intus-susception
Invalides, Hôtel des
Inveraray
Inverness
Inverness-shire
Invisible, The
Io
Iodine
Iodoform
Iolcus
Ion
Iona
Ionia
Ionian Islands
Ionic Order
Ionic School
Iowa
Iphicrates