hop

hop

¹

Old-fashioned informal a dance, esp one at which popular music is played

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hop

²

Obsolete slang opium or any other narcotic drug

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hop

³

1. any climbing plant of the N temperate genus Humulus, esp H. lupulus, which has green conelike female flowers and clusters of small male flowers: family Cannabiaceae (or Cannabidaceae)

2. hop garden a field of hops

Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

hop

[häp]

(botany)

Humulus lupulus. A dioecious liana of the order Urticales distinguished by herbaceous vines produced from a perennial crown; the inflorescence, a catkin, of the female plant is used commercially for beer production.

(communications)

A single reflection of a radio wave from the ionosphere back to the earth in traveling from one point to another.

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

hop

i. The travel of a radio wave to the ionosphere and back to earth. The number of hops a radio signal has experienced is usually designated by the expression “one hop,” “two hop,” “multihop,” etc. The number of hops is called the order of reflection.
ii. A very short flight.
iii. As used in electronic warfare, a jump from one EM (electromagnetic) frequency to another by an ECCM (electronic counter-countermeasures) subsystem.

An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved

hop

(messaging)

One point-to-point transmission in a series required to get a message from point A to point B on a store and forward network. On such networks (including UUCPNET and FidoNet), an important inter-machine metric is the hop count of the shortest path between them. This can be more significant than their geographical separation.

Each exclamation mark in a bang path represents one hop.

hop

(networking)

One direct host-to-host connection forming part of the route between two hosts in a routed network such as the Internet. Some protocols place an upper limit on the hop count in order to detect routing loops.

hop

(jargon, networking)

To log in to a remote computer, especially via rlogin or telnet. "I'll hop over to foovax to FTP that."

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

hop

The link between two network nodes. See hop count and hop off.

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