Noun

(en noun)

The forcible inclusion or entry of an external group or individual; the act of intruding.

* He viewed sales calls as an unwelcome intrusion .

*{{quote-magazine, date=2012-12-14

, author=Simon Jenkins, authorlink=Simon Jenkins , title=We mustn't overreact to North Korea boys' toys , volume=188, issue=2, page=23 , date=2012-12-21 , magazine= citation , passage=The threat of terrorism to the British lies in the overreaction to it of British governments. Each one in turn clicks up the ratchet of surveillance, intrusion and security. Each one diminishes liberty.}}

(geology) Magma forced into other rock formations; the rock formed when such magma solidifies.

Noun

(curiosities)

(obsolete) Careful, delicate construction; fine workmanship, delicacy of building.

* 1631 , John Smith, Advertisements , in Kupperman 1988, p. 81:

wee built a homely thing like a barne, set upon Cratchets, covered with rafts, sedge, and earth, so also was the walls; the best of our houses of the like curiosity , but the most part farre much worse workmanship [...].

Inquisitiveness; the tendency to ask and learn about things by asking questions, investigating, or exploring.

* 1886 , (Robert Louis Stevenson), (Strange Case Of Dr Jekyll And Mr Hyde)

It was the first time that the lawyer had been received in that part of his friend's quarters; and he eyed the dingy, windowless structure with curiosity , and gazed round with a distasteful sense of strangeness as he crossed the theatre

* 1956 , , (The City and the Stars) , p 39:

"Certainly there is nothing wrong with Alvin's intelligence, but many of the things that should concern him seem to be a matter of complete indifference. On the other hand, he shows a morbid curiosity regarding subjects which we do not generally discuss."

* {{quote-magazine, year=2013, month=September-October, author= Terrie Moffitt] [http://www.americanscientist.org/authors/detail/richie-poulton et] [http://www.americanscientist.org/authors/detail/avshalom-caspi al.

, magazine=(American Scientist), title= Lifelong Impact of Early Self-Control , passage=Curiosity about the power of self-control skills, which include conscientiousness, self-discipline, and perseverance, arose from recent empirical observations that preschool Head Start, an ambitious, federally funded program of special services launched in 1965 to boost the intellectual development of needy children, has failed to achieve the goal of boosting IQ scores. But the programs have unexpectedly succeeded in lowering the former pupils’ rates of teen pregnancy, school dropout, delinquency, and work absenteeism.}}

A unique or extraordinary object which arouses interest.