anodic
/æ'nɔdik/
Học thuậtThân thiện
Definition
Adjective 1. Of, at, or relating to an anode: Pertaining to the positively charged electrode in an electrical device, such as a battery or an electrolytic cell, through which conventional current enters from an external circuit.
Usage
The adjective "anodic" is used in scientific and technical contexts, primarily in physics, chemistry, and engineering, to describe processes, properties, or positions associated with the anode. * It modifies nouns to specify a relationship to the anode (e.g., anodic reaction, anodic current). * It is the adjectival form of the noun "anode."
Examples
- The anodic oxidation of the metal surface provides corrosion protection.
- In this battery, lithium ions move from the cathode to the anodic material during discharge.
- Researchers studied the anodic behavior of the new alloy in a saline solution.
- A voltage was applied to the anodic terminal.
Advanced Usage
- Anodic protection: A corrosion control technique where the potential of a metal is maintained in its passive region by applying an external anodic current.
- Anodic stripping voltammetry: An analytical electrochemistry technique used for trace metal detection, where metals are first deposited onto an electrode (anodic process in reverse) and then stripped off (oxidized) for measurement.
Variants and Related Words
- Anode (noun): The positively charged electrode.
- Anodize (verb): To coat a metal (typically aluminum) with a protective oxide layer via an electrolytic process where the metal serves as the anode.
- Cathodic (adjective): Of, at, or relating to the cathode (the negatively charged electrode). This is the direct antonym in electrochemical contexts.
Synonyms
- Positive (in the specific context of electrode polarity, e.g., the positive electrode). Note: "Anodic" is more precise, referring specifically to the electrode's function and electrochemical processes, not just its polarity.
Adjective
- of or at or relating to an anode