| cathedral | (adjective) relating to or containing or issuing from a bishop's office or throne | - |
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| (noun) any large and important church | - |
| (noun) the principal Christian church building of a bishop's diocese | Synonyms: duomo |
| hydralazine | (noun) an antihypertensive drug (trade name Apresoline) that dilates blood vessels; used (often with a diuretic) to treat hypertension and congestive heart failure | Synonyms: Apresoline |
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| icosahedral | (adjective) of or relating to an icosahedron | - |
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| polyhedral | (adjective) of or relating to or resembling a polyhedron | - |
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| rhombohedral | (adjective) having threefold symmetry | Synonyms: trigonal |
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