Question

a prolonged period of time
to make something more lively
to preserve something from decay
term\ttechnical meaning
balm
parchment\ta kind of paper made out of animal hide
catalyst\ta substance causing a quicker reaction

Explanation:

"Embalm" means to preserve something from decay. "Parchment" is a kind of paper made out of animal hide. "Catalyst" is a substance causing a quicker reaction.

Answer:

embalm: to preserve something from decay
parchment: a kind of paper made out of animal hide
catalyst: a substance causing a quicker reaction