expanded ppl adjective. [ɪk'spandɪd, ɛk-] M17.
[from EXPAND + -ED¹.]
1. That has expanded or has been expanded. M17.
expanded metal sheet metal slit and stretched into a lattice. expanded plastic lightweight cellular plastic used esp. for packaging and insulation.

2. Grammar. Designating a tense in which a form of the verb to be is used with a present participle. E20.

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