hop

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

hop

Obsolete slang opium or any other narcotic drug

hop

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.

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.

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.

Copyright © 1981-2025 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.

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References in periodicals archive

"If I can get the same results dry hopping in one day by running it through the machine for an hour or two versus [steeping the hops for a] week or two, I can finish that beer out and use that tank again to brew something else.

Brewing more with less

Until this work, self-propelled robots were "like tables with moving legs," says Marc Raibert, a pioneer of hopping and running robots who now heads a company called Boston Dynamics in Cambridge, Mass.

The machines now under development in California and New Mexico represent a new type of hopping robot because they don't maintain continuous motion or balance.

Compared with Sojourner, which roamed within only a few meters of its lander, the new generation of hopping machines looks toward much broader horizons--in space or on Earth.

Hop ... Hop ... Hopbots!: Designers of small, mobile robots take cues from grasshoppers and frogs

Naturally, the higher the hop rate, the harder it is to detect the hopping signal.

While detecting hoppers is straightforward, intercepting the hopping signal is more challenging.

One is to sweep the hopping range with a fast tuning receiver, then perform a quick DF measurement when you find it.

Frequency hoppers