Definition

Noun: 1. The seed of the rape plant (Brassica napus): A small, round seed, typically dark brown or black in color, which is cultivated primarily as a source of vegetable oil and animal feed.

Usage

• As a mass noun: Refers to the seeds collectively as a commodity or crop.
  • The farmer harvested several tons of rapeseed this season.
  • Rapeseed is crushed to produce oil.
• As a count noun (less common): Can refer to individual seeds, often in scientific or agricultural contexts.
  • Each pod contains many tiny rapeseeds.

Examples

• Agricultural Context:
  • Canada is a major global producer of rapeseed.
  • The field of yellow flowers is a crop of rapeseed, not mustard.
• Commercial/Product Context:
  • Rapeseed oil is commonly used in cooking and food processing.
  • This margarine is made from hydrogenated rapeseed.

Advanced Usage

• "Canola": In many regions, especially North America, the term "canola" is used for specific varieties of rapeseed bred to have low levels of erucic acid and glucosinolates, making the oil and meal suitable for human and animal consumption.
  • Canola is a type of rapeseed developed in Canada.
• Industrial Use: Beyond food, rapeseed oil is also used as a biodiesel fuel and a lubricant.
  • The company is researching rapeseed as a sustainable source for biofuel.

Variants and Related Words

• Rape (noun): The plant from which rapeseed comes. (Note: This agricultural term is distinct from the common English word with a violent meaning).
  • The rape plant produces bright yellow flowers.
• Rapeseed oil (noun phrase): The vegetable oil extracted from rapeseed.
  • Rapeseed oil has a high smoke point, making it good for frying.
• Canola oil (noun phrase): The edible oil produced from canola seeds (a type of rapeseed).
  • Canola oil is often marketed as a heart-healthy cooking oil.

Synonyms

• Colza seed (chiefly British English): An older term for rapeseed, particularly for varieties used for oil.
  • Colza oil was historically used in lamps.
• Canola seed: Specifically refers to the cultivated variety of rapeseed used for canola oil.

Related Phrases/Compounds

• Rapeseed meal (noun phrase): The byproduct after oil extraction, used as a high-protein animal feed.
  • Rapeseed meal is a common ingredient in livestock feed.
• Rapeseed cake (noun phrase): Similar to rapeseed meal; the solid residue after pressing.
  • The rapeseed cake is rich in nutrients for cattle.

Noun

1. seed of rape plants; source of an edible oil