a small animal with dark fur that lives under the ground; a unit for measuring molecules

capable of causing infection, by the spreading of a bacteria or virus to others

economic system based on private ownership of money

something that is said

movement in a circle around a central point

an electrical connector; to fill or close tightly so liquid or air cannot pass

a long piece of metal or wood; a line of light or energy

to mix; to reduce in strength, concentration, quality or purity

a formal entry into an organization, position or office

the most important part or quality of something