infrared
/ˌɪnfɹəˈɹɛd/
Word Rarity
Rare
Frequency: 3.71 in modern English
12
Scrabble Score
8
Letters
3
Syllables
7
Unique Chars
Meaning
noun
The electromagnetic radiation of a wavelength longer than visible light, but shorter than microwave radiation, having a wavelength between 700 nm and 1 mm.
Uncountable
adj
Having a wavelength in the infrared spectrum.
Example Sentences
- "Collisions of these 'transparent' molecules with the molecules that do have absorption bands in the infrared can have a considerable influence on the intensities of the observed absorption bands."
- "Sonne has shown that by means of the luminous rays the temperature in the tissue may be raised to a higher degree than by the use of the infrareds."
- "Exposure of spectral pieces at centimeters, millimeters, and infrareds, which provide a top steadiness of the dependence "MCW radiation vs. parameter Δt" and its interannual (seasonal) dynamics."
- "In his room, he could install his infrareds without being discovered."
- "Beams are the active counterparts of passive infrareds (PIRs). Since these are active infrareds, they require two parts: a transmitter and a receiver."
- "Additionally, infrareds tend to cook food faster so there's less time to render said fat."
Etymology
Word Breakdown
Regional Pronunciation
- American English: /ˌɪnfɹəˈɹɛd/
- British English: /ˌɪnfɹəˈɹɛd/
Usage
Subject
Wiktionary places this term in Physics.
Inflected Forms
Derived Forms
Phrases
cosmic infrared background
infrared astronomy
infrared camera
infrared detector
infrared divergence
infrared film
infrared filter
infrared fixed point