Question

Use an online search engine to find a trusted online dictionary, then verify the meaning of biocontainment.

It was an unmarked Level 4 biocontainment ambulance. Inside it there were an Army medical-evacuation team and a biocontainment pod known as a bubble stretcher. This was a combat medical stretcher enclosed by a biocontainment bubble made of clear plastic. If someone was bitten by a monkey, he would go into the bubble, and from there he would be transferred to the Slammer.

–The Hot Zone,
Richard Preston

What is the dictionary definition of biocontainment?

the confinement of live animals
the preservation of deadly diseases
the isolation of contagious organisms
the description of a specific region

Answer 1

I can’t run a live web search from here, but based on standard trusted dictionaries (e.g., Merriam‑Webster, Oxford) the term biocontainment means the isolation and containment of biological agents (infectious organisms or hazardous biological materials) to prevent their release or spread.

So the correct choice is: the isolation of contagious organisms.

Why the others are wrong:
- "the confinement of live animals" is too narrow (biocontainment covers microbes, materials, and facilities too).
- "the preservation of deadly diseases" is incorrect (biocontainment prevents spread, not preserves diseases).
- "the description of a specific region" is unrelated.