passed on from one person or place to another. To allow the passage of light.

Area of water protected by land and used by ships. To contain, hold, include, or hide something.

person who trains people or animals.

becoming apparent or prominent. To rise or appear out of some background.

each of four equal or corresponding parts into which something is or can be divided. One of the four time periods in a school calendar. To split something into four equal parts.

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.

economic activity involving processing of raw materials and manufacture of goods.

To insert or put something inside another thing.

Made bad due to a virus. To make people feel the same emotion you are.

by specified amount in or for every hundred. one part in every hundred.

Horse bred for racing.

Not being known or famous. Person who is not famous or known by many.

at once. as soon as.

Concerning or constituting zoonosis.

(of disease or disease-causing organism) likely to be transmitted to people, organisms, etc., through environment.