mesan.

Brit.

/ˈmeɪsə/, U.S.

/ˈmeɪsə/

Forms: 1800s mésa, 1800s– mesa. Also with capital initial.

Origin: A borrowing from Spanish. Etymon: Spanish mesa.

Etymology: < Spanish mesa high, flat plateau (1581; 10th cent. in sense ‘table’) < classical Latin mensa mensa n.

Originally U.S.

1. Physical Geography. A high rocky tableland or plateau; spec. a flat-topped hill or plateau of rock with one or more steep sides, usually rising abruptly from a surrounding plain and common in the arid and semi-arid areas of the United States. Also figurative.A mesa is similar to, but larger than, a butte.

ΘΚΠ

the world > the earth > land > landscape > level land > [noun] > plateau

table1587

tableland1672

terrace1674

plateau1743

plat1788

table plain1812

platform1813

table-ground1823

mesa1840

1759 tr. M. Venegas Nat. & Civil Hist. Calif. II. ii. 260 The squadron was obliged to run close in with the land, under some lofty black mountains, on the top of which were large plains. These they called Mesas de San Cypriano [Sp. Mesas de San Cypriano].]

1840 J. Gregg Diary (1941) I. 53 Came today about 20 miles..over this very level mesa almost as firm and more smooth than a turn-pike.

1859 R. B. Marcy Prairie Traveler 314 The road..ascends to a low mésa.

1912 E. T. Seton Arctic Prairies xxxii. 222 Mesas dotted with cedars.

1963 V. Nabokov Gift iii. 150 Out of the total of five hundred copies printed, four hundred and twenty-nine still lay, dusty and uncut, forming a neat mesa in the distributor's warehouse.

1984 S. Johnson Tunnel xiii. 123 They cruised on through a landscape which, with its mesas and buttes, grew progressively more lunar.

2011 J. C. Leacock Greetings from Colorado vii. 143 For red-rock spires, buttes, mesas, and canyons rivaling those of Utah, visit Dinosaur National Monument or Colorado National Monument.

2. Electronics. In some transistors and semiconductor diodes: a raised, flat-topped portion of n- or p-type semiconductor surrounded by an area from which the adjacent upper layer has been etched away to expose, respectively, the underlying p- or n-type material. Usually attributive, esp. in mesa diode, mesa transistor.

ΘΚΠ

the world > matter > physics > solid state physics > semiconductivity > [noun] > flat-topped portion

mesa1958

1958 C. H. Knowles in Electronic Industries (Philadelphia) Aug. 55 Recent developments at several locations have resulted in a new line of VHF-UHF Transistors... We will refer to this new line of transistors as Mesa Transistors.

1958 C. H. Knowles in Electronic Industries (Philadelphia) Aug. 55 The Mesa Transistor gets its name from its physical configuration... A basic part of its structure is the ‘Mesa’, (Spanish name for ‘table’), which is the active region of the transistor.

1966 McGraw-Hill Encycl. Sci. & Technol. (rev. ed.) VII. 316/1 Silicon mesa diodes are also used for high-speed, low-power applications.

1972 R. Boylestad & L. Nashelsky Electronic Devices & Circuit Theory iii. 137 The diffusion technique is employed in the production of mesa and planar transistors, each of which can be of the diffused or epitaxial type.

1995 Optical & Quantum Electronics 27 553 The mesa type geometry has many advantages such as simplicity of fabrication, low dark current and low capacitance.

Derivatives

ˈmesa-like adj.

ΚΠ

1869 F. V. Hayden Prelim. Field Rep. Colorado & New Mexico (U.S. Geol. Surv.) 41 The divide forms a high ridge with a mesa-like top,..covered with pines.

1977 O. Schell China (1978) iii. 206 The pigs live in old earthen caves..which have been hollowed out of a small mesa-like tuft of earth which sticks up off the ravine floor.

2015 H. Lüth Quantum Physics in Nanoworld App. B. 483 Confinement in the third direction, that is, formation of the quantum dot, is achieved by lithographic structuring of nano-scale mesa-like columns.

This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2022).

单词	mesa
释义	mesan. Brit. /ˈmeɪsə/, U.S. /ˈmeɪsə/ Forms: 1800s mésa, 1800s– mesa. Also with capital initial. Origin: A borrowing from Spanish. Etymon: Spanish mesa. Etymology: < Spanish mesa high, flat plateau (1581; 10th cent. in sense ‘table’) < classical Latin mensa mensa n. Originally U.S. 1. Physical Geography. A high rocky tableland or plateau; spec. a flat-topped hill or plateau of rock with one or more steep sides, usually rising abruptly from a surrounding plain and common in the arid and semi-arid areas of the United States. Also figurative.A mesa is similar to, but larger than, a butte. ΘΚΠ the world > the earth > land > landscape > level land > [noun] > plateau table1587 tableland1672 terrace1674 plateau1743 plat1788 table plain1812 platform1813 table-ground1823 mesa1840 1759 tr. M. Venegas Nat. & Civil Hist. Calif. II. ii. 260 The squadron was obliged to run close in with the land, under some lofty black mountains, on the top of which were large plains. These they called Mesas de San Cypriano [Sp. Mesas de San Cypriano].] 1840 J. Gregg Diary (1941) I. 53 Came today about 20 miles..over this very level mesa almost as firm and more smooth than a turn-pike. 1859 R. B. Marcy Prairie Traveler 314 The road..ascends to a low mésa. 1912 E. T. Seton Arctic Prairies xxxii. 222 Mesas dotted with cedars. 1963 V. Nabokov Gift iii. 150 Out of the total of five hundred copies printed, four hundred and twenty-nine still lay, dusty and uncut, forming a neat mesa in the distributor's warehouse. 1984 S. Johnson Tunnel xiii. 123 They cruised on through a landscape which, with its mesas and buttes, grew progressively more lunar. 2011 J. C. Leacock Greetings from Colorado vii. 143 For red-rock spires, buttes, mesas, and canyons rivaling those of Utah, visit Dinosaur National Monument or Colorado National Monument. 2. Electronics. In some transistors and semiconductor diodes: a raised, flat-topped portion of n- or p-type semiconductor surrounded by an area from which the adjacent upper layer has been etched away to expose, respectively, the underlying p- or n-type material. Usually attributive, esp. in mesa diode, mesa transistor. ΘΚΠ the world > matter > physics > solid state physics > semiconductivity > [noun] > flat-topped portion mesa1958 1958 C. H. Knowles in Electronic Industries (Philadelphia) Aug. 55 Recent developments at several locations have resulted in a new line of VHF-UHF Transistors... We will refer to this new line of transistors as Mesa Transistors. 1958 C. H. Knowles in Electronic Industries (Philadelphia) Aug. 55 The Mesa Transistor gets its name from its physical configuration... A basic part of its structure is the ‘Mesa’, (Spanish name for ‘table’), which is the active region of the transistor. 1966 McGraw-Hill Encycl. Sci. & Technol. (rev. ed.) VII. 316/1 Silicon mesa diodes are also used for high-speed, low-power applications. 1972 R. Boylestad & L. Nashelsky Electronic Devices & Circuit Theory iii. 137 The diffusion technique is employed in the production of mesa and planar transistors, each of which can be of the diffused or epitaxial type. 1995 Optical & Quantum Electronics 27 553 The mesa type geometry has many advantages such as simplicity of fabrication, low dark current and low capacitance. Derivatives ˈmesa-like adj. ΚΠ 1869 F. V. Hayden Prelim. Field Rep. Colorado & New Mexico (U.S. Geol. Surv.) 41 The divide forms a high ridge with a mesa-like top,..covered with pines. 1977 O. Schell China (1978) iii. 206 The pigs live in old earthen caves..which have been hollowed out of a small mesa-like tuft of earth which sticks up off the ravine floor. 2015 H. Lüth Quantum Physics in Nanoworld App. B. 483 Confinement in the third direction, that is, formation of the quantum dot, is achieved by lithographic structuring of nano-scale mesa-like columns. This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2022). < n.1840
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