What's the difference between troad and trode?

Troad

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Definition:

• (n.) See Trode.

Example Sentences:

Trode

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Definition:

• () imp. of Tread.
• (n.) Tread; footing.

Example Sentences:

• (1) Our antihero, we gradually realise, attaches electrodes (“trodes”) to his head to gain access via a “deck” to “the matrix”.
• (2) My joeboy smelled the skin frying and pulled the trodes off me.