| Main Entry: | |
| Part of Speech: | noun |
| Definition: | barrier |
| Synonyms: | bar, barricade, blank wall, clog, closure, embolus, encirclement, hindrance, impediment, infarct, infarction, obstacle, obstruction, restriction, roadblock, siege, snag, stop, stoppage, wall |
| Antonyms: | opening |
| Main Entry: | blood clot |
| Part of Speech: | noun |
| Definition: | mass of thickened blood |
| Synonyms: | coagulum, crassamentum, embolism, embolus, grume, thrombus |