convection
/kənˈvɛkʃən/
Word Rarity
Rare
Frequency: 3.22 in modern English
17
Scrabble Score
10
Letters
3
Syllables
7
Unique Chars
Meaning
noun
The vertical movement of heat and moisture, especially by updrafts and downdrafts in an unstable air mass. The terms convection and thunderstorm are often used interchangeably, although thunderstorms are only one form of convection. Towering cumulus clouds are visible forms of convection.
Countable; Uncountable
Example Sentences
Etymology
From Latin convectiōnem, from convectiō (“act of carrying”), from convect-, past participle stem of convehō (“to carry together”), combination of com- and vehō. By surface analysis, convect + -ion.