portolano
[ pawr-tl-ah-noh, pohr- ]
/ ˌpɔr tlˈɑ noʊ, ˌpoʊr- /
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noun, plural por·to·la·nos, por·to·la·ni [pawr-tl-ah-nee, pohr-]. /ˌpɔr tlˈɑ ni, ˌpoʊr-/.
a descriptive atlas of the Middle Ages, giving sailing directions and providing charts showing rhumb lines and the location of ports and various coastal features.
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Also called rutter.
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
How to use portolano in a sentence
In the fourteenth century the map of Edrisi was superseded by the new Italian plans and coast-charts, or Portolani.
Strictly scientific map-making begins with the Mediterranean portolani.
The Chronicle of the Discovery and Conquest of Guinea|Gomes Eannes de AzuraraNor do the earliest portolani contain any compass-roses or wind-roses.
The Chronicle of the Discovery and Conquest of Guinea|Gomes Eannes de AzuraraThis is the most remarkable of all the Portolani of the fourteenth century.
The Chronicle of the Discovery and Conquest of Guinea|Gomes Eannes de Azurara