Word · Frequency #7234
thermal
热的；热量的；温泉的
relating to or associated with heat; of or relating to a hot spring; caused by or designed to retain heat
- 1.
Pertaining to heat or temperature.
与热或温度有关的。
- 2.
Providing efficient insulation so as to keep the body warm.
提供有效隔热以保持身体温暖。
- 3.
Caused or brought about by heat.
由热引起或导致的。
- 4.
Having a rough finish from treatment with a blowtorch.
通过喷灯处理而产生的粗糙表面。
与热或温度有关的。；提供有效隔热以保持身体温暖。；由热引起或导致的。；通过喷灯处理而产生的粗糙表面。；热的
In use
The thermal insulation in this building is very effective.
We are going hiking in a thermal area.
The glider pilot found a thermal and climbed higher.
thermal + n
thermal 作为形容词常与物理或工程名词搭配。
The thermal conductivity of copper is high.
铜的导热性很高。
catch/pick up a thermal
名词thermal指上升暖流，常用于滑翔或鸟类飞行的语境。
The eagle caught a thermal and soared upward.
老鹰捕捉到一股上升暖气流，向上翱翔。
Common mistakes
We felt a strong thermal from the fire.We felt strong heat from the fire.
作为名词，'thermal'特指气象学中的上升暖气流，并非泛指热量。表示火散发出的热量应用'heat'。
Connections
Collocations
- thermal energy
- 热能
- Solar panels convert sunlight into thermal energy.太阳能板将阳光转化为热能。
- thermal insulation
- 热绝缘
- The house has good thermal insulation to reduce heating costs.这房子有良好的热绝缘以减少取暖费用。
- thermal expansion
- 热膨胀
- Engineers must account for thermal expansion in bridge design.工程师在设计桥梁时必须考虑热膨胀。
- thermal spring
- 温泉
- They visited a thermal spring in the mountains.他们参观了山里的一个温泉。
- thermal updraft
- 热上升气流
- Gliders use thermal updrafts to gain altitude.滑翔机利用热上升气流获得高度。
- catch a thermal
Learner notes
Memory Tip
想象冬天穿上thermal内衣，保暖又舒适，'therm'就像'热'的感觉。
Context & Register
形容词 thermal 常用于科技、工程、环境等正式语境，如 thermal energy（热能）、thermal spring（温泉）；名词 thermal 指上升热气流，主要用于滑翔运动或气象讨论，如 ride a thermal（乘热气流滑翔）。
Grammar Note
形容词通常用于名词前；名词为可数名词，指上升暖气流。
Pronunciation & Spelling
All listed words end with the spelling '-mal' and share the same unstressed syllable /məl/, but none rhyme with 'thermal' due to differing stressed vowels (e.g., /ɔː/ in normal, /æ/ in mammal, /ɛ/ in decimal). The initial sound of 'thermal' (/θ/) is also distinct.
Usage priority
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.