Definition

1. Noun:
   • A type of fastener: A threaded nut with two flat, wing-like projections that allow it to be tightened or loosened by hand using the thumb and forefinger, without the need for a tool.
   • A type of tree: Any tree belonging to the genus Pterocarya, characterized by producing small, winged nutlets as fruit. These trees are native to a region from the Caucasus to southeastern Asia.

Examples of Usage

• Noun (Fastener):
  • Secure the panel with a wing nut for easy removal later.
  • I tightened the wing nut by hand until it was snug.
• Noun (Tree):
  • The Chinese wing nut is a popular ornamental tree in some parks.
  • The seeds of the wing nut are dispersed by the wind.

Advanced Usage

• The term is often used in mechanical and construction contexts to describe a component designed for quick assembly and disassembly where a tool is not available or convenient.
• In botany and horticulture, the term specifically refers to trees in the genus and is used in scientific and descriptive contexts.

Variants and Related Words

• Wingnut (one word): An alternative, common spelling for the fastener.
• Butterfly nut: A synonym for the fastener, referencing the wing-like projections.
• Thumb nut: Another synonym emphasizing the method of turning it by hand.
• Pterocarya: The scientific genus name for the tree.

Synonyms

• For the fastener: Butterfly nut, thumb nut, hand nut.
• For the tree: (scientific name).

Related Phrases

• Finger-tighten: To tighten using just the fingers, as one would with a wing nut.
  • Finger-tighten the wing nut first, then use a wrench for the final quarter-turn.

Noun

1. a threaded nut with winglike projections for thumb and forefinger leverage in turning
2. any tree of the genus Pterocarya; fruit is a small winged nutlet; Caucasus to southeastern Asia