Key terms & definitions

A deliberate refusal to buy a business's products in order to pressure it to change its actions.

Refusing to buy goods or participate in an activity in order to put pressure on those responsible for injustice.

A deliberate refusal to buy goods or participate in activities in order to express opposition or apply pressure.

A route to the Montana goldfields through the Powder River Country, an important Lakota hunting area.

A reinforcing member, usually fitted diagonally, that helps a structure resist distortion.

Internal radiotherapy in which sealed radioactive sources are placed inside or next to a tumour.

To place a value between a known lower bound and a known upper bound.

Grouping symbols which show that an operation applies to the complete expression inside them.

A geographical model describing expected changes in river characteristics with distance downstream, including increasing channel width, depth and discharge.

A low resting heart rate, which can develop as an adaptation to regular exercise.

The creator deity in the Tri-murti.

A Buddhist discourse examining views about the self and world, including views about existence after death, and explaining how craving and misunderstanding shape them.

The ultimate divine reality in Hinduism.

The part of the central nervous system inside the skull that processes information and coordinates the body's activities.

The movement of skilled and educated workers out of a country, reducing its supply of expertise and labour.

The loss of skilled or highly educated workers from a country through emigration.

Abnormal functioning of the brain, which may involve unusually high or low activity, abnormal structure or damage.

The processes carried out by the brain, such as movement, sensation, memory and language.

The brain’s ability to change its structure and connections in response to learning and experience.

The region at the base of the brain that regulates unconscious activities including heart rate and breathing rate.

The part of the brain connecting it to the spinal cord, involved in controlling essential automatic functions such as breathing and heart rate.

The part of the brain connecting with the spinal cord and controlling vital automatic functions such as breathing and heart rate.

Cooking food slowly in a small amount of liquid in a covered vessel, often after browning it.

The distance a vehicle travels from when the brakes are applied until it comes to rest.

The distance a vehicle travels under the braking force, from when the brakes are applied until it stops.

A force opposing a vehicle's motion while its brakes slow it down.

A force acting against a vehicle’s motion when its brakes are applied.

One of the separate paths available to current in a parallel circuit.

A line on a tree diagram representing one possible outcome at a particular stage; its label can show that outcome and its probability.

A connection where one signal splits to feed more than one gate; each branch carries the same value.