terra incognita

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terra in·cog·ni·ta

 (ĭn′kŏg-nē′tə, -kŏg′nĭ-tə)
n. pl. terrae in·cog·ni·tae (ĭn′kŏg-nē′tē, -kŏg′nĭ-tē′)
1. An unknown land; an unexplored region: "a vast and virtually final terra incognita left to terrestrial explorers" (David F. Salisbury).
2. A new or unexplored field of knowledge.

[New Latin : Latin terra, land + Latin incognita, feminine of incognitus, unknown.]

terra incognita

(ˈtɛrə ɪnˈkɒɡnɪtə)
(Literary & Literary Critical Terms) an unexplored or unknown land, region, or area for study

ter•ra in•cog•ni•ta

(ˈtɛr ə ɪnˈkɒg nɪ tə, ˌɪn kɒgˈni-)
n., pl. ter•rae in•cog•ni•tae (ˈtɛr aɪ ɪnˈkɒg nɪˌtaɪ, ˌɪn kɒgˈni taɪ)
an unknown or unexplored land, region, or subject.
[1610–20; < Latin: unknown land]

terra incognita

A Latin phrase meaning unknown ground, used to mean an unexplored or unfamiliar territory.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.terra incognita - an unknown and unexplored regionterra incognita - an unknown and unexplored region; "they came like angels out the unknown"
region - a large indefinite location on the surface of the Earth; "penguins inhabit the polar regions"
References in classic literature ?
The Rocky Mountains formed a vast barrier between them and the United States, and their stern and awful defiles, their rugged valleys, and the great western plains watered by their rivers, remained almost a terra incognita to the American trapper.
Worth a total of Pound 17,000, the project was supported by the Terra Incognita programme of the Kosice region.
It is this literary terra incognita that Brown's signature protagonist, the symbologist Robert Langdon, occupies.
Synopsis: In "Ancient Ocean Crossings: Reconsidering the Case for Contacts with the Pre-Columbian Americas", Stephen Jett (Professor Emeritus of Geography and of Textiles and Clothing at the University of California, Davis) encourages readers to reevaluate the common belief that there was no significant interchange between the chiefdoms and civilizations of Eurasia and Africa and peoples who occupied the alleged terra incognita beyond the great oceans.
Fieldwork is planned in parts of the Democratic Republic of Congo, the Republic of Congo and Angola that are terra incognita for archaeologists to determine the timing, location and archaeological signature of the earliest villagers and to establish how they interacted with autochthonous hunter-gatherers.
It is an exploration into Terra Incognita, the human mind, that vast and hitherto unknown realm half an inch back of our foreheads.
According to this map the great Terra Incognita extends from Tierra del Fuego, below the Strait of Magellan along the south of the globe.
Entering the Sursock Museum's Fouad Debbas Collection Gallery -- a dimly-lit room with spotlights shining on antique photographs -- the viewer is transported back to a time when the Orient was terra incognita.
Editor's Note: "We have quantitated [determined] the ability of adequate amounts of vitamin D to prevent all types of invasive cancer combined, which had been terra incognita until publication of this paper," commented coauthor Cedric Garland, DrPH, who is an adjunct professor at the University of California San Diego School of Medicine Department of Family Medicine and Public Health.
On Wednesday, a team of neuroscientists released an extremely detailed map of terra incognita of the human brain - the cerebral cortex.
NASA's science chief John Grunsfeld said, "There's very little terra incognita in our solar system today.
At the staff of my newspaper very few of my colleagues know where Latvia or the Baltic States can be found, but the Chief Editor believes that a story about such a European Terra Incognita is a good idea.