avid /avˈid/

1. Greedy
2. Eagerly desirous (for)

avidˈity noun

1. Greed
2. Desire, eagerness
3. A measure of the strength of binding between an antigen and an antibody (immunology)

• expanding universe theory
• expandor
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• expansion board
• expansion boards
• expansion bolt
• expansion bolts
• expansion card
• expansionism
• expansionisms
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• expansion joint