host

1. Biology

a. an animal or plant that nourishes and supports a parasite

b. an animal, esp an embryo, into which tissue is experimentally grafted

2. Computing a computer connected to a network and providing facilities to other computers and their users

3. the owner or manager of an inn

Host

Christian Church the bread consecrated in the Eucharist

Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

host

[hōst]

(biology)

An organism on or in which a parasite lives.

The dominant partner of a symbiotic or commensal pair.

(chemistry)

A crystalline lattice or receptor molecule for the strong and selective binding of a cationic, anionic, or neutral organic, inorganic, or biological substance (guest) by means of electrostatic, hydrogen-bonding, van der Waals, or donor-acceptor interactions. Examples include clathrates, crown ethers, cryptands, cyclodextrins, calixarenes, cavitands, cyclophanes, and cryptophanes. Also known as host structure, host substance.

host

(networking)

A computer connected to a network.

The term node includes devices such as routers and printers which would not normally be called "hosts".

host

(communications)

A computer to which one connects using a terminal emulator.

This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

host

(1) A source of information or signals. The term can refer to a computer, smartphone, tablet or any electronic device. In a network, clients (users' machines) and servers are hosts because they are both sources of information in contrast to network devices, such as routers and switches, which only direct traffic. See host adapter and hostname.

(2) To have in one's possession. When you "host a computer system," the system is running in your facility. Although sounding inane, it is technically accurate to say "our company hosts many hosts!"

(3) The person in control of a videoconference (a video meeting). The host sets up the meeting and invites participants. During the meeting, the host can invite more people as well as disinvite anyone who is causing a disruption.

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References in periodicals archive

1988), positive phototaxis in Euhaplorchis cercariae is a natural behavior this species uses to move toward pelagic and surface-water habitats frequented by its fish secondary hosts. The minimum light intensity required to evoke an ascending movement was 4.0 X [10.sup.15] photons [m.sup.-2] [s.sup.-1] (6.64 X [10.sup.-3] [micro]mol photons [m.sup.-2] [s.sup.-1]).

Comparative photobehavior of marine cercariae with differing secondary host preferences

macrochirus were designated as secondary hosts because less than 30% of the fish tested produced juvenile mussels and the average number of juveniles produced was less than 3 (Table 2).

Reproductive biology and juvenile recruitment of the shinyrayed pocketbook, Lampsilis subangulata (Bivalvia: Unionidae) in the Gulf Coastal Plain

Horned soldiers represent a novel life-history strategy for aphids living on a secondary host. I have discussed the possible causes for the origins of defensive behavior on the secondary host, but there were also likely to be ecological consequences of soldier evolution.

Phylogeny of the tribe Cerataphidini (Homoptera) and the evolution of the horned soldier aphids

Alford (1994) discovered that in June, the winged form migrated to the secondary host, a large variety of plant including potatoes, tomatoes and other herbaceous plant.

External Anatomy and Life Cycle of Aphis nasturtii (Hemiptera: Aphididae)

Jaenike (1990) postulated that the abundance of the most preferred host in a region can result in higher thresholds of attraction to secondary host plants, which tend to be disregarded by the pest in such circumstances.

Abundance of Frankliniella schultzei (Thysanoptera: Thripidae) in flowers on major vegetable crops of south Florida

mojavensis for these two populations, and the low positive genetic correlations suggest a genetic mechanism underlying the past colonization of secondary host plants throughout the species range.

Genetics of host-cactus response and life-history evolution among ancestral and derived populations of cactophilic Drosophila mojavensis

Secondary hosts marginally support the beetle's life cycle or only support a portion of the life cycle.

10:30-12:00 Noon Podium Session Session 04 Ecology and Environmental Science Room 417ABC

Dogs and foxes are the primary hosts while slugs and snails are secondary hosts.

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