(definition) by Webster 1913 Wed Dec 22 1999 at 3:54:40

Trea"dle (?), n. [OE. tredyl a step, AS. tredel. See Tread.]

1.

The part of a foot lathe, or other machine, which is pressed or moved by the foot.

2. Biol.

The chalaza of a bird's egg; the tread.

 

© Webster 1913.

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