Elderly Health

noun a person who is between 90 and 99 years old

• The nonagenarian philanthropist donated a large sum of money to the local hospital.
• My neighbor, a nonagenarian, still goes for walks every morning.
• That nonagenarian is one tough cookie!
• The ancient oak tree in the park could be considered a nonagenarian in tree years.

noun an infection that inflames the air sacs in one or both lungs, causing coughing, fever, and difficulty breathing

• Pneumonia is a serious infection that inflames the air sacs in one or both lungs.
• My grandma was hospitalized with pneumonia last winter.
• I heard that nasty cough could be pneumonia, dude.
• The corruption within the government spread like pneumonia throughout the country.

adjective showing a decline or deterioration of physical strength or mental functioning, especially in old age

• The doctor diagnosed the elderly patient with senile dementia.
• My grandpa keeps forgetting things, he's getting a bit senile.
• Don't mind him, he's just a senile old man.
• The company's outdated policies are like a senile old man refusing to change.