What does sodic mean?
Sodic is a technical adjective meaning “relating to or containing sodium.” It is especially common in soil science, where sodic ground is ground with an unusually high content of exchangeable sodium; this condition can impair soil structure, reduce drainage, and restrict plant growth. The term also appears in mineralogy and water analysis for materials and samples rich in sodium or sodium ions. In ordinary writing, “sodium-containing” is usually clearer than the formal adjective, although it does not convey the specifically high-sodium implication that “sodic” often carries in soil descriptions. Sodic is therefore especially useful when discussing geological materials, agricultural land, groundwater, or chemical composition, where the concentration and form of sodium may be significant rather than incidental.
adjectiveRelating to sodium; containing sodium, especially sodium ions or sodium compounds.
- Relating to sodium or containing sodium, especially sodium ions or sodium compounds; in soil science, having a high content of exchangeable sodium.
"Sodic soils can become difficult to cultivate because their high sodium content causes dispersion and poor drainage."
"The laboratory tested the sodic soil for excessive levels of exchangeable sodium."
"Sodic water was unsuitable for irrigation because of its high sodium content."
Sodic is the specialist way of saying that sodium is in the mix.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does sodic come from?
Sodic was formed during the 19th century from sodium and the chemical suffix -ic. Sodium was coined in Neo-Latin from soda, which was borrowed from Italian. The same etymological line includes sodalite, a mineral named for its sodium content.
How sodic is actually used
Chiefly formal and technical, especially in soil science, mineralogy, and water analysis. In soil descriptions, it normally implies an unusually high sodium content rather than the mere presence of trace sodium.