1. of, relating to, or belonging to the grass family (Gramineae or Poaceae)
Usage: botanical term; formal

Examples

• Wheat and rice are graminaceous plants widely cultivated for food.
• The graminaceous species in the meadow provide grazing for livestock.
• Bamboo is a graminaceous plant that grows rapidly in tropical regions.
• The lawn consists primarily of graminaceous vegetation.
• Corn is a graminaceous crop that dominates agricultural production in many regions.