semipositive

== English == === Alternative forms === semi-positive === Etymology === From semi- +‎ positive. === Adjective === semipositive (not comparable) Partially positive in attitude etc. (mathematics) Having a dual that is nonnegative. (mathematics) Having all elements nonnegative where at least one is positive. (materials engineering) A type of compression mold for plastics that allows for excess powder and flash, as in an open flash mold, but which allows for lower melt viscosities as in a fully positive mold.