1. L ESSON 25

2. L ESSON 25 #1 WordPart of Speech DefinitionSentence Cognition Noun The mental process of knowing, including awareness, reasoning, and judgment Exercise may lead to improvements in cognition through improved blood flow to the brain.

3. L ESSON 25 #2 WordPart of Speech DefinitionSentence CognizantAdjectiv e Fully informed; aware or conscious of something People who are considering running for office should be cognizant of the personal sacrifices involved.

4. L ESSON 25 #3 WordPart of Speech DefinitionSentence Connoisse ur Noun A knowledgeable person who appreciates high quality, especially in such areas as the arts or fine dining. An art connoisseur could probably tell you whether that painting in your attic is worth a lot of money.

5. L ESSON 25 #4 WordPart of Speech DefinitionSentence Conscienti ous AdjectiveA)careful, thorough, and hard working B)Guided by conscience; principled or ethical A)A proofreader must be conscientious, or errors will be published. B)She was so conscientious that, after she realized that the cashier had given her too much change, she went back to the store to return it.

6. L ESSON 25 #5 WordPart of Speech DefinitionSentence DiagnosisNounThe identification of a disease or other condition. After thorough examination, the doctor offered his diagnosis: pneumonia.

7. L ESSON 25 #6 WordPart of Speech DefinitionSentence IncognitoA)Adver b B)Adjec tive With one’s identity concealed A)Hollywood stars often travel incognito to avoid swarming fans. B)He adjusted his wig and whispered, “I'm incognito, so don’t say my name out loud.”

8. L ESSON 25 #7 WordPart of Speech DefinitionSentence NotorietyNounFame for something negative; infamy The newspaper reporter earned notoriety for writing about events that never really happened.

9. L ESSON 25 #8 WordPart of Speech DefinitionSentence Omniscien t AdjectiveHaving total knowledge; knowing everything In many books, an omniscient narrator tells the story.

10. L ESSON 25 #9 WordPart of Speech DefinitionSentence Prognosi s NounA)A forecast or prediction B)A prediction of the outcome of a disease, or the likelihood of recovery from a disease. A)The official shared her upbeat economic prognosis with reporters. B)Because her doctor detected the problem in its early stages, the patient’s prognosis was excellent.

11. L ESSON 25 #10 WordPart of Speech DefinitionSentence Unconscio nable AdjectiveA)Immoral; unprincipled; not restrained by conscience B)Beyond prudence or reason; excessive A)It was unconscionable of you to go to the basketball game instead of visiting your grandmother in the hospital. B)In a world where people are starving, $3,000 seemed like an unconscionable amount of money to spend on a coat.