1. As regards the node.

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

• nodicule,
• modical,
• jodical,
• hodical,
• nkdical,
• nldical,
• npdical,
• n0dical,
• n9dical,
• noddical,
• nodicall,
• Nodicle,
• Nodcale,
• Nodicol,
• Nodecal,
• Noddecal,
• Nodicual,
• Noddicale,
• Noddicul,
• Nodicull

The adjective form of the word "Nodical" is "Nodal".

The plural form of the word "nodical" is "nodicals".

The singular form of the word "Nodical" is "Nodical". The word does not have a distinct singular or plural form as it is already a singular adjective.