1. The mistletoe.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• visum,
• ciscum,
• biscum,
• giscum,
• fiscum,
• vuscum,
• vjscum,
• vkscum,
• voscum,
• v9scum,
• v8scum,
• viacum,
• vizcum,
• vixcum,
• vidcum,
• viscim,
• viscumm,
• vyscum,
• viskum,
• viscam

• vicuna,
• viocin,
• vicini.

The adjective form of the word "viscum" is "viscous".

The plural form of the word "viscum" is "vismes".

The singular form of the word "viscum" is "vismum".