| 释义 |
WordReference Random House Learner's Dictionary of American English © 2024plum•met /ˈplʌmɪt/USA pronunciation n. [countable]- Building, Surveyingthe piece of lead attached to a plumb line.
v. [no object] - to fall straight down;
plunge:The plane plummeted to the ground and exploded. - to become much less in amount or quantity:During the recession jobs plummeted.
WordReference Random House Unabridged Dictionary of American English © 2024plum•met (plum′it),USA pronunciation n. - Building, SurveyingAlso called plumb bob. a piece of lead or some other weight attached to a line, used for determining perpendicularity, for sounding, etc.;
the bob of a plumb line. - something that weighs down or depresses.
v.i. - to plunge.
- Middle French, diminutive of plomb lead; (verb, verbal) derivative of the noun, nominal See plumb, -et
- (noun, nominal) Middle English plommet 1350–1400
- 3.See corresponding entry in Unabridged fall, dive, drop, swoop.
Collins Concise English Dictionary © HarperCollins Publishers:: plummet /ˈplʌmɪt/ vb ( -mets, -meting, -meted)- (intransitive) to drop down; plunge
n - a lead plumb used by anglers to determine the depth of water
Etymology: 14th Century: from Old French plommet ball of lead, from plomb lead, from Latin plumbum |