eutectic

1 of 3

adjective (1)

eu·​tec·​tic yü-ˈtek-tik 

1

of an alloy or solution : having the lowest melting point possible

2

: of or relating to a eutectic alloy or solution or its melting or freezing point

eutectic noun

eutectoid

yü-ˈtek-ˌtȯid 

adjective or noun

eutectoid

2 of 3

noun

eu·​tec·​toid

yüˈtekˌtȯid

plural -s

: a eutectoid alloy (such as pearlite) formed when a solid solution transforms during cooling into new solid phases, the change taking place entirely in the solid state

eutectoid

3 of 3

adjective (2)

: like a eutectic

—used especially of steel in the form of pearlite

Examples of eutectic in a Sentence

Recent Examples on the Web

Adjective

Breaking from the pack, Greater Bay has developed a proprietary deep eutectic composite electrolyte — a move that could shift the industry’s focus toward hybrid material systems. —Mrigakshi Dixit, Interesting Engineering, 15 Apr. 2026

For example, Thompson has identified one candidate, a mixture of acids and bases called a deep eutectic solvent, that dissolves everything but nickel. —Ian Morse, Science | AAAS, 20 May 2021

In the freezing stage, the product is cooled to below its eutectic point, or the lowest temperature at which the solid and liquid phase can coexist. —Ashton Yoon, Discover Magazine, 17 Feb. 2016

Word History

Etymology

Adjective (1)

Greek eutēktos easily melted, from eu- + tēktos melted, from tēkein to melt — more at thaw

Noun

International Scientific Vocabulary eutect- (from eutectic) + -oid, noun suffix

First Known Use

Adjective (1)

1884, in the meaning defined at sense 1

Rhymes for eutectic

• cachectic
• eclectic
• symplectic
• apoplectic
• dialectic
• hectic
• pectic
• smectic

Medical Definition

eutectic

adjective

eu·​tec·​tic yu̇-ˈtek-tik 

1

of an alloy or solution : having the lowest melting point possible

2

: of or relating to a eutectic alloy or solution or its melting or freezing point

eutectic noun