✦Word Atlas
AtlasExplore by topicLearnTypingProgress
中文Start today's session
Home/Explore by topic/Science/hardness
hardness illustration

hardness

/ˈhɑːdnəs/ · /ˈhɑːrdnəs/

CEFR level B2Topic ScienceWord #5300 in the learning path

坚硬;硬度

Add to today's session

Definitions

n. How strongly a material resists scratching, cutting, or denting.

坚硬;硬度

n. The amount of dissolved calcium and magnesium in water.

水的硬度

Example

The hardness of this wood makes it difficult to carve.

这种木材硬度高,很难雕刻。

Engineers assess the hardness of different materials before selecting suitable components for bridges and other major structures.

工程师在为桥梁等大型结构选择合适的构件前,会评估不同材料的硬度。

Collocations

  • surface hardness
  • water hardness
  • hardness test

Word family

  • hard (adj.)
  • harden (v.)
  • hardening (n.)

Antonyms

  • softness

Usage tip

hardness 指硬度;hardship 才指困苦。

FAQ

What does hardness mean?
How strongly a material resists scratching, cutting, or denting. The amount of dissolved calcium and magnesium in water.
How is hardness pronounced?
UK /ˈhɑːdnəs/, US /ˈhɑːrdnəs/. Use the audio buttons above to listen.

Related words in this topic

All words in Science · 325 →
steeln. 钢;钢材B2 · Scienceisolatev. 隔离;使孤立B2 · Sciencecompositionn. 组成;成分B2 · Sciencephasen. 阶段;时期B2 · Scienceexplosionn. 爆炸B2 · Scienceinvestigatev. 调查;查明B2 · Scienceextractv. 提取;取出;获取B2 · Sciencethresholdn. 阈值;界限C1 · Science
Word Atlas

Not an official IELTS list · AI-generated content, not individually reviewed

AboutPrivacyExplore by topicExplore by CEFR levelSource repository

京ICP备19002019号-1

Vocabulary & illustrations: Word Atlas contributors — CC BY 4.0 (adapted into bilingual pages) · Dataset CC BY 4.0 · Code MIT · CC BY 4.0 / MIT