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barnacle

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barnacle

any of various marine crustaceans of the subclass Cirripedia that, as adults, live attached to rocks, ship bottoms, etc. They have feathery food-catching cirri protruding from a hard shell
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

barnacle

[′bär·nə·kəl]
(engineering)
A nodelike deposit that occurs on the surface of a heat exchanger tube or an evaporating device and has a semigranular outer shell bonded to the fouled surface, enclosing a slurry of putrefying organisms.
(invertebrate zoology)
The common name for a number of species of crustaceans which compose the subclass Cirripedia.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

PUP

(Potentially Unwanted Program) An application that is installed along with the desired application the user actually asked for. Also called a "barnacle," in most cases, the PUP is spyware, adware or some other unwanted software. However, what makes spyware or adware a PUP rather than pure malware is the fact that the end user license agreement (EULA) does inform the user that this additional program is being installed. Considering hardly anyone ever reads the license agreement, the distinction is a subtle one. See spyware, adware and malware.
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References in periodicals archive
ON THE UP: The barnacle geese population has grown to more than 10,000 across North Uist, Coll and Tiree
If my memory of genetics serves me right, if a white barnacle mates with a normal plumage barnacle they will have a one in four chance of producing a white offspring but a one in two chance of producing a normal plumage carrier.
In the 1950s, the Arctic-breeding Russian population of Barnacle Geese was estimated at 10 000 individuals (Boyd, 1961).
Diversity and distribution of the pedunculate barnacle Octolasmis in the seas adjacent to Singapore.
Morphology of cyprid attachment organs compared across disparate barnacle taxa: Does it relate to habitat?
In both Portugal and Spain, goose barnacles (Pollicipes pollicipes) are considered a delicacy.
Bedlam's second novel in the Tales of Barnacle Bill series, Skeleton Krewe, has experienced sales catapulting with the announcement last month of the novel release in eBook and paperback editions.
Beachgoers are being warned not to try to remove the barnacles but to hand the turtles over to the project.
A.amphitrite is a common fouling barnacle distributed globally in tropical and subtropical waters (Chenetal., 2014).
BARNACLE BILL'S Feast on the freshest salmon and tuna, outstanding crab cakes and more; Barnacle Bill's proves you don't have to have a water view to enjoy the best the sea has to offer.
Biofouling, Antifouling, Barnacle adhesion, Field test, Siloxane-polyurethane
"Sea Turtle's Lament: Barnacle, o barnacle, / where'd you come from, barnacle?
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