interstrain

As a noun terms

is .

As an adjective interstrain is

(biology) between strains.

In biology|lang=en terms the difference between strain and interstrain

is that strain is (biology) a particular breed or race of animal, microbe etc while interstrain is (biology) between strains.

As a noun strain

is (obsolete) treasure or strain can be the act of straining, or the state of being strained.

As a verb strain

is (obsolete) to hold tightly, to clasp.

As an adjective interstrain is

(biology) between strains.