mildew
mildew Lexical Profile
mildew Game Scores & Validity
• noun
A thin, whitish or grayish superficial coating of microscopic fungal hyphae that grows on damp organic matter such as fabric, paper, leather, or walls.
"Leaving wet towels in the laundry basket for days will inevitably result in a musty smell and spots of mildew."
Any of various plant diseases caused by parasitic fungi (such as powdery or downy mildew) that leave a discolored, powdery, or downy coating on leaves, stems, and fruits.
"The vineyard suffered heavy crop losses after a humid spring triggered an outbreak of powdery mildew on the grapevines."
• verb
To become coated, stained, or affected with mildew, or to cause something to develop mildew.
"The canvas tent will quickly mildew if you pack it away while it is still damp from the morning rain."
Word Nuance & Usage
While often used interchangeably with 'mold' in everyday speech, 'mildew' specifically refers to flat, powdery, surface-level fungal growth (often white or gray), whereas 'mold' penetrates deeper into organic materials and tends to appear fuzzy and dark.
Word Origin & Etymology
From Old English 'meledēaw', literally meaning 'honeydew', originally referring to the sweet, sticky substance secreted by aphids on leaves before shifting in Middle English to denote fungal coatings.