**Assumption**, a festival in the Roman church, in honour of the miraculous ascent of the Virgin Mary into heaven: the Greek church, who also observe this festival, celebrate it on the 15th of August with great ceremony.

**Assumption**, in Logic, is the minor or second proposition in a categorical syllogism.

**Assumption** is also used for a consequence drawn from the proposition whereof an argument is composed.

**Assumption**, an island in North America, in the gulf of St Lawrence, at the mouth of the great river of the same name. It is covered with trees. W. Long. 60° 40' N. Lat. 49° 30'.

**Assumption**, a large and handsome town of Paraguay, on the river of the same name in South America. It is a bishop's see, is well peopled, and seated in a country fruitful in corn and fruits, whose trees are always green. There is likewise a quantity of pasture, and the air is temperate and salutary. W. Long. 60° 40' S. Lat. 34° 10'.

**Assumptive arms**, in Heraldry, are such as a person has a right to assume, with the approbation of his sovereign, and of the heralds: thus, if a person who has no right by blood, and has no coat of arms, shall Assurance shall captivate in any lawful war any gentleman, nobleman, or prince; he is, in that case, entitled to bear the shield of that prisoner, and enjoy it to him and his heirs for ever.