(mathematics) The integral of a function between an upper and lower limit

(linear algebra) Said of a real, square matrix: that the product of it with a column vector on its right side and the transpose of that column vector on its left side is greater or equal to zero, only equaling zero if the vector itself is zero.

plural of definite integral

(ecology) The host in which a parasite reproduces sexually.

plural of definitive host

(logic) A Horn clause with exactly one positive literal.

plural of definite article

plural of definite maybe

(informal) an indication that the uncertainty of an event or matter is fixed and immutable

(finance) A document defining the final terms of an agreement between buyer and seller, typically of a company's assets or stock.