Definition of portolan in English:

portolan

(also portolano)

nounPlural portolanos, Plural portolans ˈpɔːtəlanˈpôrtl-ən

historical

A book of sailing directions with charts and descriptions of harbours and coasts.
〈史〉航海指南
Example sentencesExamples
- From early times, charts called portolans (harbor guides) were available to provide details required by the coastline-hugging sailor - depth of the water, location of treacherous rocks, special landmarks, et cetera.
- Nonetheless, in this period the portolan chart remained very much centred on the Mediterranean and destinations easily reached from there.
- The earliest portolan maps covered the Mediterranean and Black Sea and showed wind directions and such information useful to sailors.
- In its purest form, the portolan chart was a highly functional tool for navigation whether in the contained arena of the Mediterranean or later in the open oceans of the world.
- On an oceanic voyage, however, especially at higher latitudes, the converging meridians on the physical globe conflicted with the parallel meridians shown on the traditional portolan chart.

Origin

Mid 19th century: from Italian portolano, from porto 'harbour'.

Rhymes

ortolan

Definition of portolan in US English:

portolan

(also portolano)

nounˈpôrtl-ən

historical

A book of sailing directions with charts and descriptions of harbors and coasts.
〈史〉航海指南
Example sentencesExamples
- Nonetheless, in this period the portolan chart remained very much centred on the Mediterranean and destinations easily reached from there.
- From early times, charts called portolans (harbor guides) were available to provide details required by the coastline-hugging sailor - depth of the water, location of treacherous rocks, special landmarks, et cetera.
- The earliest portolan maps covered the Mediterranean and Black Sea and showed wind directions and such information useful to sailors.
- In its purest form, the portolan chart was a highly functional tool for navigation whether in the contained arena of the Mediterranean or later in the open oceans of the world.
- On an oceanic voyage, however, especially at higher latitudes, the converging meridians on the physical globe conflicted with the parallel meridians shown on the traditional portolan chart.

Origin

Mid 19th century: from Italian portolano, from porto ‘harbor’.

单词	portolan
释义	Definition of portolan in English: portolan (also portolano) nounPlural portolanos, Plural portolans ˈpɔːtəlanˈpôrtl-ən historical A book of sailing directions with charts and descriptions of harbours and coasts. 〈史〉航海指南 Example sentencesExamples From early times, charts called portolans (harbor guides) were available to provide details required by the coastline-hugging sailor - depth of the water, location of treacherous rocks, special landmarks, et cetera. Nonetheless, in this period the portolan chart remained very much centred on the Mediterranean and destinations easily reached from there. The earliest portolan maps covered the Mediterranean and Black Sea and showed wind directions and such information useful to sailors. In its purest form, the portolan chart was a highly functional tool for navigation whether in the contained arena of the Mediterranean or later in the open oceans of the world. On an oceanic voyage, however, especially at higher latitudes, the converging meridians on the physical globe conflicted with the parallel meridians shown on the traditional portolan chart. Origin Mid 19th century: from Italian portolano, from porto 'harbour'. Rhymes ortolan Definition of portolan in US English: portolan (also portolano) nounˈpôrtl-ən historical A book of sailing directions with charts and descriptions of harbors and coasts. 〈史〉航海指南 Example sentencesExamples Nonetheless, in this period the portolan chart remained very much centred on the Mediterranean and destinations easily reached from there. From early times, charts called portolans (harbor guides) were available to provide details required by the coastline-hugging sailor - depth of the water, location of treacherous rocks, special landmarks, et cetera. The earliest portolan maps covered the Mediterranean and Black Sea and showed wind directions and such information useful to sailors. In its purest form, the portolan chart was a highly functional tool for navigation whether in the contained arena of the Mediterranean or later in the open oceans of the world. On an oceanic voyage, however, especially at higher latitudes, the converging meridians on the physical globe conflicted with the parallel meridians shown on the traditional portolan chart. Origin Mid 19th century: from Italian portolano, from porto ‘harbor’.
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