Isopycnic :: Isopycnic (a.) Having equal density, as different regions of a medium; passing through points at which the density is equal; as, an isopycnic line or surface..
Isopycnic :: Isopycnic (n.) A line or surface passing through those points in a medium, at which the density is the same..
Picnic :: Picnic (v.) Formerly, an entertainment at which each person contributed some dish to a common table; now, an excursion or pleasure party in which the members partake of a collation or repast (usually in the open air, and from food carried by themselves)..
Picnic :: Picnic (v. i.) To go on a picnic, or pleasure excursion; to eat in public fashion..