word \
multi \
rust \
oxy \
sphero
| oxy |
sphero |
rust |
| sharp, pointed |
ball |
- a red or brown oxide coating on iron or steel caused by the action of oxygen and moisture
- a plant disease that produces a reddish-brown discoloration of leaves and stems; caused by various rust fungi
- the formation of reddish-brown ferric oxides on iron by low-temperature oxidation in the presence of water
- any of various fungi causing rust disease in plants
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