Asphalt paper
paper treated with asphalt, as to increase toughness or water resistance.
historical examples
it is a good plan to wrap bud wood in tar or asphalt paper when storing it.
growing nuts in the north carl weschcke
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- Asphalt rock
a rock formation, usually of limestone or sandstone, containing large amounts of bitumens.
- Aspan
aspan american society of perianesthesia nurses
- Asparaginase
an enzyme that catalyzes the conversion of to aspartic acid and ammonia, used in the treatment of acute lymphocytic leukemia. asparaginase as·par·a·gin·ase (ə-spār’ə-jə-nās’, -nāz’) n. a bacterial enzyme that catalyzes the hydrolysis of asparagine and is used in the treatment of leukemia.
- Asparagine
a white, crystalline, amino acid, nh 2 coch 2 ch(nh 2)cooh, soluble in water, obtained from certain plants, especially legumes, and used chiefly as a nutrient in culture media for certain bacteria. symbol: n. abbreviation: asn; historical examples the diuretic action is extremely feeble, and neither the plant nor asparagine is now used medicinally. encyclopaedia […]
- Asparagus bean
a trailing, long-stemmed asian vine, vigna unguiculata sesquipedalis, of the legume family, having yellow or violet flowers and very long pods.