Definition: Describing organisms that can swim freely and independently in water, rather than being carried along by currents.

Example: Fish and dolphins are nektonic animals that swim against the ocean currents.

Definition: Relating to a specific phase of liquid crystals where the molecules are arranged in loose parallel lines.

Example: The display technology uses nematic liquid crystals to create clear images.

Definition: Relating to substances that kill nematodes, which are a type of roundworm often considered pests in agriculture.

Example: Farmers often use nematicidal treatments to protect their crops from harmful nematodes.

Definition: A type of pesticide specifically made to kill nematodes, which are small roundworms that can harm plants.

Example: Farmers often use nematicides to protect their crops from nematode infestations.

Definition: Describing a substance that kills nematodes, which are a type of roundworm.

Example: The nematocidal treatment effectively reduced the population of harmful roundworms in the soil.

Definition: A chemical or substance that is used to kill nematodes, which are small, worm-like organisms that can harm plants and crops.

Example: Farmers often use nematocides to protect their crops from harmful nematodes.

Definition: A small structure found in certain sea creatures, like jellyfish, that can shoot out a tiny, stinging thread to catch prey or defend itself.

Example: When the jellyfish was touched, its nematocysts released a painful sting.

Definition: A type of worm that has a long, round body and can live in soil, water, or as a parasite in plants and animals.

Example: The scientist studied the nematode to understand its effects on plant health.

Definition: The study of a type of roundworm known as nematodes, which are often found in soil and water and can affect plants and animals.

Example: Researchers in nematology study how these roundworms impact agriculture and ecosystems.

Definition: Relating to a group of marine worms known for their long, slender bodies and ability to extend and retract.

Example: The nemertean species found in the ocean can vary greatly in size and color.

Definition: A type of long, flat marine worm that is often brightly colored and has a special feeding structure called a proboscis. These worms usually live in the sea or in muddy areas near the shore.

Example: The nemertean was spotted crawling along the sandy beach, its vibrant colors shining in the sunlight.