Definition of "incognita" [in•cog•ni•ta]

• With one's identity disguised or concealed. Used of a woman. (adverb)
• A woman or girl whose identity is disguised or concealed. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "My entire island of Terra incognita is an online 3D environment based on Reg Revans style Action Learning."
• "Within these limits, however, empty spaces were not terra incognita, which is what some scholars have assumed the blanks on colonial maps represented; they were not perilous "margins and thresholds," "reminders of the failure of knowledge and hence the tenuousness of possession.""
• "Ah, my dear fellow, speaking physically, my incognita is the most adorable feminine person whom I ever met."