Categories
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The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Youth rights (1 member)
- Yttrium (1 member)
- Yttrium compounds (3 members)
- Yttrium minerals (2 members)
- Yugoslavia during World War II (1 member)
- Yuma, Arizona (1 member)
- Yunnan (1 member)
- ZX Spectrum programmers (1 member)
- Zairian physicians (1 member)
- Zambales (1 member)
- Zanesville, Ohio (1 member)
- Zen (1 member)
- Zeolites (1 member)
- Zero (1 member)
- Zinc (3 members)
- Zinc alloys (1 member)
- Zinc compounds (16 members)
- Zinc enzymes (22 members)
- Zinc finger proteins (3 members)
- Zinc minerals (4 members)