| alum | (noun) a double sulphate of aluminum and potassium that is used as an astringent (among other things) | - |
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| (noun) a white crystalline double sulfate of aluminum: the potassium double sulfate of aluminum | Synonyms: potash alum, potassium alum |
| (noun) a white crystalline double sulfate of aluminum: the ammonium double sulfate of aluminum | Synonyms: ammonia alum, ammonium alum |
| (noun) a person who has received a degree from a school (high school or college or university) | Synonyms: grad, graduate |
| paspalum | (noun) tall tufted perennial tropical American grass naturalized as pasture and forage grass in southern United States | Synonyms: dallis grass, dallisgrass, Paspalum dilatatum |
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| tantalum | (noun) a hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite | Synonyms: atomic number 73, Ta |
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