| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024ex•ca•va•tor (eks′kə vā′tər),USA pronunciation n. - a person or thing that excavates.
- Civil Engineeringa power-driven machine for digging, moving, or transporting loose gravel, sand, or soil.
- Dentistrya sharp, spoonlike instrument used for scraping out diseased tissue, as in dentistry.
Collins Concise English Dictionary © HarperCollins Publishers:: ˈexcaˌvator /ˈɛkskəˌveɪtə/ n - a powered machine for digging earth, gravel, sand, etc, esp a caterpillar tractor so equipped
- any person, animal, or thing that excavates
ex•ca•vate /ˈɛkskəˌveɪt/USA pronunciation v. [~ + object], -vat•ed, -vat•ing. - Civil Engineeringto make hollow; make a hole or cavity in: The ground was excavated for a foundation.
- Civil Engineeringto make (a hole, tunnel, etc.) by removing material.
- to expose or lay bare by or as if by digging;
unearth:The archaeologist excavated the ruins of ancient Troy.
ex•ca•va•tion /ˌɛkskəˈveɪʃən/USA pronunciation n. [countable* uncountable] ex•ca•va•tor, n. [countable] WordReference Random House Unabridged Dictionary of American English © 2024ex•ca•vate (eks′kə vāt′),USA pronunciation v.t., -vat•ed, -vat•ing. - Civil Engineeringto make hollow by removing the inner part;
make a hole or cavity in;
form into a hollow, as by digging:The ground was excavated for a foundation. - Civil Engineeringto make (a hole, tunnel, etc.) by removing material.
- Civil Engineeringto dig or scoop out (earth, sand, etc.).
- to expose or lay bare by or as if by digging;
unearth:to excavate an ancient city.
- Latin excavātus (past participle of excavāre to hollow out), equivalent. to ex- ex-1 + cav(um) hollow, cave + -ātus -ate1
- 1590–1600
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