1. A bursting in; a sudden, violent rushing into a place; as,
irruptions of the sea.
Lest evil tidings, with too rude irruption Hitting thy aged ear,
should pierce too deep.
Milton.
2. A sudden and violent inroad, or entrance of invaders; as, the
irruptions of the Goths into Italy. Addison.
Syn. -- Invasion; incursion; inroad. See Invasion.
Ir*rup"tive (?), a. Rushing in or upon.
Ir"ving*ite (?), n. (Eccl.) The common designation of one a sect
founded by the Rev. Edward Irving (about 1830), who call themselves the
Catholic Apostolic Church. They are highly ritualistic in worship, have
an elaborate hierarchy of apostles, prophets, etc., and look for the
speedy coming of Christ.
Is- (?). See Iso-.
Is (?), v. i. [AS. is; akin to G. & Goth. ist, L. est, Gr. &?;, Skr.
asti. √9. Cf. Am, Entity, Essence, Absent.] The third person
singular of the substantive verb be, in the indicative mood, present
tense; as, he is; he is a man. See Be.
In some varieties of the Northern dialect of Old English, is was used
for all persons of the singular.
For thy is I come, and eke Alain.
Chaucer.
Aye is thou merry.
Chaucer.
The idiom of using the present for future events sure to happen is a
relic of Old English in which the present and future had the same form;
as, this year Christmas is on Friday.
To-morrow is the new moon.