devotion of time and attention to gaining knowledge of academic subject. Topics or subjects you research or learn about. To focus on learning something usually at school.

Adrenal-cortex hormone (trade names Hydrocortone or Cortef) that is active in carbohydrate and protein metabolism.

occurring continuously. unchanging situation.

To cause a change in something else.

physical substance. To be of great importance; to count.

series of actions towards achieving something. To convert by putting something through a machine.

person who is studying or has expert knowledge of one or more of natural or physical sciences. People who are trained in a science.

Chemical produced by the body to control functions.

Blood flowing through the circulatory system.

experiencing mental or emotional strain or tension. To put pressure on something or someone.

acquisition of knowledge or skills through study. To get knowledge or skills by study or experience.

Always or often doing something, e.g. lying.

Used before you explain something simply, clearly.

nectar-feeding insect with two pairs of large wings. Insects with large and colorful wings. split piece of meat or fish almost in two.

in most cases.