osmolarity

noun

os·​mo·​lar·​i·​ty ˌäz-mō-ˈler-ə-tē 

-ˈla-rə-, 

ˌäs-

plural osmolarities

: the concentration of an osmotic solution especially when measured in osmols or milliosmols per liter of solution

osmolar

äz-ˈmō-lər 

äs-

adjective

Examples of osmolarity in a Sentence

Recent Examples on the Web

Milk balances osmolarity, which promotes water absorption by cells. — Veronica Cristino, Vogue, 29 Sep. 2026

Similarly, negative feedback controls physiological parameters such as blood pressure and osmolarity. — Quanta Magazine, 17 Oct. 2018

Word History

Etymology

osmol + -ar + -ity

First Known Use

1948, in the meaning defined above

Rhymes for osmolarity

• angularity
• bipolarity
• capillarity
• cellularity
• circularity
• familiarity
• granularity
• insincerity
• insularity
• modularity
• popularity
• regularity

Medical Definition

osmolarity

noun

os·​mo·​lar·​i·​ty ˌäz-mō-ˈlar-ət-ē, ˌäs- 

plural osmolarities

: the concentration of an osmotic solution especially when measured in osmols or milliosmols per liter of solution

osmolar

äz-ˈmō-lər, äs- 

adjective