Noun

The act or process of (physically or figuratively) attaching.

* 2005 , Rebecca N. Baergen, Manual of Benirschke and Kaufmann's Pathology of the Human Placenta , page 71:

The “implantation window” is a short, specific phase during which attachment of the blastocyst occurs.

A strong bonding towards or with.

I have such an attachment towards my fiancé!

A dependence, especially a strong one.

* 2003 , Griffith Edwards, Alcohol: The World's Favorite Drug , page 63:

Through every other kind of drug experience, however, ran his attachment to alcohol.

A device attached to a piece of equipment or a tool.

* 1978 , Walter H. Wager, Time of reckoning , page 194:

Zimchenko's phone had a tape attachment ,

The means by which something is physically attached.

* 2012 , Sinikka Elliott, Not My Kid: What Parents Believe about the Sex Lives of Their Teenagers , page 46:

[The umbilical cord is] the attachment connecting the fetus with the placenta.

(computing) A file sent along with an email.

(legal) Taking a person's property to satisfy a court-ordered debt.

attachment of earnings

(meteorology) The act or process by which any (downward) leader connects to any available (upward) streamer in a lightning flash.

* 2009 , Jakke Mäkelä, Eero Karvinen, Niko Porjo, Antti Mäkelä and Tapio Tuomi, Attachment of Natural Lightning Flashes to Trees: Preliminary Statistical Characteristics'', published in the ''Journal of Lightning Research , volume 1

Noun

(en noun)

The act of touching physically; being in close association.

* {{quote-book, year=1935, author= George Goodchild

, title=Death on the Centre Court, chapter=1 , passage=She mixed furniture with the same fatal profligacy as she mixed drinks, and this outrageous contact between things which were intended by Nature to be kept poles apart gave her an inexpressible thrill.}}

The establishment of communication (with).

*

, title=(The Celebrity), chapter=1 , passage=In the old days, […], he gave no evidences of genius whatsoever. He never read me any of his manuscripts, […], and therefore my lack of detection of his promise may in some degree be pardoned. But he had then none of the oddities and mannerisms which I hold to be inseparable from genius, and which struck my attention in after days when I came in contact with the Celebrity.}}

A nodule designed to connect a device with something else.

Someone with whom one is in communication.

(label) A contact lens.

(label) A device designed for repetitive connections.

Contact juggling.

(mining) The plane between two adjacent bodies of dissimilar rock.

(Raymond)