[eks-kuh-vey-shuh n] /ˌɛks kəˈveɪ ʃən/
a hole or cavity made by .
the act of .
an area in which has been done or is in progress, as an archaeological site.
1610s, “action of excavating,” from Latin excavationem (nominative excavatio) “a hollowing out,” noun of action from past participle stem of excavare (see excavate).
excavation ex·ca·va·tion (ěk’skə-vā’shən)
- Excavation of optic disk
excavation of optic disk n. The normally occurring depression or pit in the center of the optic disk. Also called physiologic excavation.
[eks-kuh-vey-ter] /ˈɛks kəˌveɪ tər/ noun 1. a person or thing that . 2. a power-driven machine for digging, moving, or transporting loose gravel, sand, or soil. 3. a sharp, spoonlike instrument used for scraping out diseased tissue, as in dentistry. /ˈɛkskəˌveɪtə/ noun 1. a powered machine for digging earth, gravel, sand, etc, esp a caterpillar […]
[ik-seed] /ɪkˈsid/ verb (used with object) 1. to go beyond in quantity, degree, rate, etc.: to exceed the speed limit. 2. to go beyond the bounds or limits of: to exceed one’s understanding. 3. to surpass; be superior to; excel: Her performance exceeded all the others. verb (used without object) 4. to be greater, as […]
[ik-seed-ns] /ɪkˈsid ns/ noun 1. the act or fact of something, especially a limit or standard: penalties for exceedance of air quality standards. 2. the amount by which something a limit or standard: a 10 percent exceedance.