Definition: A type of tiny, single-celled algae that have a hard outer shell made of silica. They are often found in water and can be either alone or in groups.

Example: Diatoms play an important role in the aquatic food chain and are used in various scientific studies.

Definition: Relating to or made from diatoms, which are tiny, aquatic organisms with silica-based cell walls.

Example: The diatomaceous earth is often used as a natural pesticide in gardens.

Definition: A small tool with a pointed end used in gardening to create holes in the soil for planting seeds or bulbs.

Example: She used a dibble to plant the new flower bulbs in her garden.

Definition: To create holes in the ground using a pointed tool, often for planting seeds.

Example: She used a dibble to make holes for the new plants in the garden.

Definition: A type of small, creeping plant that is often used as ground cover instead of grass, especially in warm areas.

Example: The garden was covered in lush dichondra, providing a soft green carpet.

Definition: A small bird that resembles a sparrow, found mainly in the central United States and southern Ontario, known for its yellow breast and black throat.

Example: The dickcissel sang beautifully from the top of the fence post.

Definition: To stop living or to cease to exist; to pass away.

Example: The old tree finally died after many years of drought.

Definition: A small cube with dots on each side, used in games of chance to generate random numbers.

Example: We rolled the die to see who would go first in the game.

Definition: To cut, shape, or mark something using a tool or device that creates a specific form or design.

Example: The artist used a die to create intricate patterns on the metal surface.

Definition: The process where parts of a plant, especially the tips of shoots, gradually die due to diseases or environmental factors.

Example: The tree showed signs of dieback after the harsh winter conditions.

Definition: Referring to a plant species that has male and female reproductive organs on separate individuals, meaning that one plant will produce only male flowers and another will produce only female flowers.

Example: The diecious plants in the garden require both male and female specimens to produce seeds.

Definition: A type of tropical plant with thick stems and large, patterned leaves, often grown indoors. It is also known as dumb cane due to its toxic properties.

Example: She decided to buy a dieffenbachia to brighten up her living room.

Definition: Relating to a 24-hour period that includes both day and night.

Example: The diel cycle of the ecosystem affects the behavior of many animals.

Definition: A part or section of something, often used to refer to a specific component or piece.

Example: The diel of the machine needs to be replaced to ensure it functions properly.