not complete; only a part of something

(set theory, order theory, of a set) Equipped with a partial order; when the partial order is specified, often construed with by.

plural of partially ordered set

(set theory, order theory, loosely) A set that has a given, elsewhere specified partial order. / (set theory, order theory, formally) The ordered pair comprising a set and its partial order.

plural of partial order

(mathematics) Any of several fractions to the sum of which a single fraction is equal.

plural of partial vacuum

plural of partial charge

(mycology) A veil which covers the mushroom gills from the edge of the cap to the stem.

plural of partial fraction