threshold

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threshold

1. Psychol the strength at which a stimulus is just perceived
2. 
a. the minimum intensity or value of a signal, etc., that will produce a response or specified effect
b. (as modifier): a threshold current
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

Threshold

A strip fastened to the floor beneath a door, to cover the joint where two types of floor materials meet or to provide weather protection.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved

What does it mean when you dream about a threshold?

A threshold is a symbol for passing from one state or condition to the next, indicating a transition in some aspect of the dreamer’s life.

The Dream Encyclopedia, Second Edition © 2009 Visible Ink Press®. All rights reserved.

threshold

[′thresh‚hōld]
(building construction)
A piece of stone, wood, or metal that lies under an outside door.
(electronics)
In a modulation system, the smallest value of carrier-to-noise ratio at the input to the demodulator for all values above which a small percentage change in the input carrier-to-noise ratio produces a substantially equal or smaller percentage change in the output signal-to-noise ratio.
(engineering)
The least value of a current, voltage, or other quantity that produces the minimum detectable response in an instrument or system.
(geology)
(mathematics)
A logic operator such that, if P, Q, R, S, … are statements, then the threshold will be true if at least N statements are true, false otherwise.
(physics)
The minimum level of some input quantity needed for some process to take place, such as a threshold energy for a reaction, or the minimum level of pumping at which a laser can go into self-excited oscillation.
(physiology)
The minimum level of a stimulus that will evoke a response in an irritable tissue.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

threshold

1. A strip fastened to the floor beneath a door, usually required to cover the joint where two types of floor material meet; may provide weather protection at exterior doors. Also See doorsill.
2. In illumination engineering, the value of physical stimulus which permits an object to be seen a specified percentage of the time with specified accuracy.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.

threshold

threshold
The beginning of that portion of the runway usable for landing (ICAO). On instrument runways, it is indicated by long stripes followed by the runway designation marking. The number of stripes is dependent on the width of the runway.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved

threshold

(1) The point at which a signal (voltage, current, etc.) is perceived as valid.

(2) (Threshold) The code name for Windows 10.
Copyright © 1981-2019 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.
References in periodicals archive ?
Audiometric profile of the study participants: median auditory thresholds in the right and left ear.
* Comparison between cases and control revealed that the cases had increased auditory threshold.
Despite cellular integration into the basilar membrane, functional evaluation of mIESC-transplanted guinea pigs revealed no significant improvement in auditory thresholds. This finding could be attributable to the short observation period (2 weeks), during which the formation of functional synaptic contact with new cells showing a hair-cell phenotype was unlikely.
Our emphasis in devising this protocol is to attempt to stabilize auditory thresholds to maximize the effectiveness of the amplification trial period.
Four weeks following exposure, a time interval designed to permit recovery of any temporary threshold shifts, auditory thresholds were assessed in all subjects.
(173) Furthermore, the concurrent systemic twice-daily administration of D-methionine and gentamicin significantly attenuates auditory threshold shifts in guinea pigs.
* Group 1: subjects with normal auditory thresholds without tinnitus complaint;
STATISTICAL METHODS: P-value was found out by ANOVA method to find out the significance of auditory thresholds between various categories of parameters.
Hearing sensitivity for an experimental group of 278 industrial workers who engaged in recreational shooting was compared with that of an age-matched control group of 278 nonshooting industrial workers to examine the effect of gunfire exposure on auditory thresholds. The influence of age and the number of unprotected gunshot exposures per year also was examined.
Regarding the mean ages and auditory thresholds, similar values were also observed, with no differences that could compromise the application of the evaluation procedures.
AIMS AND OBJECTIVES: The purpose of the present study is to evaluate the effect of noise pollution on auditory thresholds in middle school children of Bangalore city using pure tone audiometer.
The existence or lack of hearing loss was classified according to the average of the tonal auditory thresholds at 500, 1000, 2000 and 4000 Hz, considering as normal audiometry those tests whose average values are less than or equal to 25 dBNA [10].