释义 |
plum·met I. \ˈpləmə̇t, usu -ə̇d.+V\ noun (-s) Etymology: Middle English plomet, from Middle French plommet, plombet ball of lead, from plomb lead + -et — more at plumb 1. a. : sounding lead b. : plumb bob; also : plumb line c. obs Scotland : a weighted knob on the pommel of a sword or dirk d. obsolete : a leaden ball (as on the thong of a scourge) e. : a weight for a clock f. : a leaden weight on an angler's line g. : a piece of lead formerly used for marking (as in ruling paper before writing) h. : an ancient Egyptian amulet resembling a plumb bob i. : a float that somewhat resembles a plumb bob in shape and is used to determine the specific gravity of a liquid 2. : something that weighs down or depresses II. intransitive verb (-ed/-ing/-s) 1. : to fall perpendicularly < the plane plummeted to earth > 2. : to drop sharply and abruptly < prices may plummet later > < blood pressure plummeted to 60/20 > |