Definition: A type of tree also known as balsam poplar, which is commonly found in North America.

Example: The hackmatack tree is known for its tall stature and distinctive bark.

Definition: This term describes the areas of the ocean that are found at extreme depths, specifically those deeper than 6,000 meters (20,000 feet).

Example: The hadal zone is home to unique species that can survive in extreme pressure and darkness.

Definition: A type of iron ore that is dark red or black and is used in making iron and steel.

Example: The geologist found a large deposit of haematite in the mountain.

Definition: A type of cherry tree that grows in northern Europe and northern Asia, known for its small, bittersweet fruit that birds and some people eat.

Example: The hagberry tree was full of ripe fruit, attracting many birds to the garden.

Definition: A type of sea bird belonging to the genus Puffinus, particularly known for species like the greater shearwater and the black hagdon, which are often found in marine environments.

Example: The hagdon soared gracefully above the waves, searching for fish to catch.

Definition: A type of primitive fish that has an eel-like shape and a round mouth without jaws, which it uses to suck and feed on other fish and invertebrates.

Example: The hagfish is known for its ability to produce large amounts of slime when threatened.

Definition: A word used to greet someone or show respect, often used in a formal or celebratory context.

Example: Hail to the heroes who fought for our freedom!

Definition: To fall from the sky in small, hard balls of ice, similar to rain but much colder.

Example: During the storm, it began to hail, covering the ground in white pellets.

Definition: A type of precipitation that consists of small balls or lumps of ice that fall from the sky, often during storms.

Example: The storm brought a heavy hail that covered the ground in white.

Definition: A small, round piece of ice that falls from the sky during a storm.

Example: The hailstones were so large that they damaged the car's roof.

Definition: A type of storm that produces small balls or pieces of ice called hail.

Example: The hailstorm damaged many cars and roofs in the neighborhood.

Definition: The most covered with hair; having a lot of hair.

Example: The dog was the hairiest in the competition, with fur that seemed to go on forever.