streakline |
streaklike |
As a noun streakline
is a locus of points of all the fluid particles that have passed continuously through a particular spatial point in the past.
As an adjective streaklike is
resembling a streak or some aspect of one.
pathline |
streakline |
As nouns the difference between pathline and streakline
is that
pathline is (physics) the path taken by an individual fluid particle over a given time period while
streakline is a locus of points of all the fluid particles that have passed continuously through a particular spatial point in the past.