feeling or showing despair.

striving to achieve or attain something in face of difficulty or resistance. To try very hard to do something difficult.

for unlimited or unspecified period of time.

intellectual and practical activity encompassing systematic study of structure and behaviour of physical and natural world.

person one has affectionate bond with. People who you like and enjoy being with. add someone to list of friends or contacts on social networking website.

better, greater, or otherwise different from what is usual. Heavily discounted sales item.

providing physical ease. quilt.

bacterium, virus, or other microorganism. Any disease-producing agent.

Existing only in a digital world.

definite. To make a legal judgment in court.

Being related to life and living things. substance of biological origin used as drug, vaccine, pesticide, etc..

state, period, or place of isolation in which people or animals that have arrived from elsewhere or been exposed to infectious or contagious disease are placed. To isolate ill people to prevent disease spreading.

person who gives advice in particular field.

organized provision of medical care.