Question

What do you mean by plasma ?​

Answer 1

the colourless fluid part of blood, lymph, or milk, in which corpuscles or fat globules are suspended.

2.

an ionized gas consisting of positive ions and free electrons in proportions resulting in more or less no overall electric charge, typically at low pressures (as in the upper atmosphere and in fluorescent lamps) or at very high temperatures (as in stars and nuclear fusion reactors).

"the current passed through a column of plasma"

Answer 2

A plasma is a hot ionized gas consisting of approximately equal numbers of positively charged ions and negatively charged electrons. The characteristics of plasmas are significantly different from those of ordinary neutral gases so that plasmas are considered a distinct "fourth state of matter."