Noun

(propensities)

A tendency, preference, or attraction.

* {{quote-magazine, year=2013, month=May-June, author= Katie L. Burke

, title= In the News , volume=101, issue=3, page=193, magazine=(American Scientist) , passage=Bats host many high-profile viruses that can infect humans, including severe acute respiratory syndrome and Ebola. A recent study explored the ecological variables that may contribute to bats’ propensity to harbor such zoonotic diseases by comparing them with another order of common reservoir hosts: rodents.}}

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