Definition

Noun: A plant belonging to the genus Allium or related genera, characterized by a bulbous structure and typically producing a pungent odor reminiscent of onion or garlic.

Examples

• The common onion is a well-known alliaceous plant.
• Garlic, leeks, and chives are all examples of alliaceous plants.
• The garden's border was planted with various ornamental alliaceous plants.

Advanced Usage

• The term is used in botanical and horticultural contexts to classify plants with specific chemical (organosulfur) compounds responsible for their distinctive smell and taste.
• It can describe plants used for culinary, medicinal, or ornamental purposes.

Variants and Related Words

• Allium (n): The principal genus of alliaceous plants, including onion, garlic, and leek.
• Alliaceous (adj): Having the properties or characteristics of an alliaceous plant; pertaining to the onion family.

Synonyms

• Bulb plant (in this specific, odoriferous context)
• Member of the onion family

Related Idioms or Phrases

• None specific to the term "alliaceous plant" itself. The term is technical and not commonly used in idiomatic expressions.

Noun

1. bulbous plants having a characteristic pungent onion odor