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passive
(redirected from passive diffusion)

   Also found in: Dictionary/thesaurus, Medical, Legal, Financial, Wikipedia 0.03 sec.
passive: see voice voice, grammatical category according to which an action is referred to as done by the subject (active, e.g., men shoot bears) or to the subject (passive, e.g., bears are shot by men). In Latin, voice is a category of inflection like mood or tense.
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passive
1. Chem (of a substance, esp a metal) apparently chemically unreactive, usually as a result of the formation of a thin protective layer that prevents further reaction
2. Electronics Telecomm
a. containing no source of power and therefore capable only of attenuating a signal
b. not capable of amplifying a signal or controlling a function


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In view of the observed pH--solubility profile, for a 50% v/v propylene glycol:water vehicle, a pH between 4 and 5 was suggested by the authors to provide the most favourable environment for passive diffusion since the concentration of unionised methotrexate would be optimal.
The Stratum corneum can increase its water content above 250%, and up to 75% of retained water in hydrated skin is free water, which can assist in the passive diffusion of soluble molecules into the skin.
Opiates, PCP, amphetamines, and cocaine enter oral fluid through passive diffusion of the drug from the bloodstream into oral fluid.
 
 
Passive Countermeasure
Passive Countermeasure System
Passive Crystal Detector
Passive current loop
passive cutaneous anaphylaxis
passive cutaneous anaphylaxis
passive cutaneous anaphylaxis
passive cutaneous anaphylaxis (PCA)
passive cutaneous anaphylaxis (PCA)
passive cutaneous anaphylaxis (PCA)
passive cutaneous anaphylaxis (PCA) test
passive cutaneous anaphylaxis (PCA) test
passive cutaneous anaphylaxis (PCA) test
passive cutaneous anaphylaxis (PCA) test
passive cutaneous anaphylaxis (PCA) test
Passive Cutaneous Anaphylaxis Inhibition
passive cutaneous Arthus reaction
passive cutaneous Arthus reaction
passive data
passive data
passive data
passive data
Passive Data Collection
Passive Debt
Passive Debts
passive defense
passive detection
Passive Detection System
Passive Detection System Simulator
Passive device
passive diffusion
Passive Diffusion Bag
Passive Diffusion Bag Sampler
Passive Dispersion Compensator
passive display
Passive Doppler Tracking
passive double reflector
Passive Downdraught Evaporative Cooling
passive drain
passive drain
passive drain
passive drain
Passive Dual Technology
Passive Duplicate Address Detection
Passive Duplicate Address Detection - Duplicate Cache
Passive Duplicate Address Detection - Link State
Passive Duplicate Address Detection - Locality Principle
Passive Duplicate Address Detection - Neighborhood History
Passive Duplicate Address Detection - Sequence Number
Passive Duplicate Address Detection - Sequence Number Always Increment
Passive Duplicate Address Detection - Sequence Numbers Different
Passive Duplicate Address Detection - Sequence Numbers Equal
Passive Duplicate Address Detection - Source Address
passive earth pressure
Passive Edge Growth
Passive Electro-magnetic Detection System
Passive Electronic Countermeasures
Passive Electronic Countermeasures
Passive Electronic Warfare
 
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