Definition

1. Noun:
   • A taxonomic order of marine arthropods: "Order Pycnogonida" is the scientific name for a group of marine animals commonly known as sea spiders. They are characterized by their small bodies and very long legs, and are found in oceans worldwide.

Usage Examples

• Noun:
  • The biologist studied the unique anatomy of the Order Pycnogonida.
  • Species within Order Pycnogonida are more diverse in polar seas.

Advanced Usage

• In taxonomic hierarchy: The term is used in formal biological classification to group all sea spider species.
  • The class Pycnogonida contains only the Order Pycnogonida.

Variants and Related Words

• Pycnogonida (noun): The class name, often used interchangeably in general contexts to refer to sea spiders.
  • Pycnogonida are not true spiders.
• Sea spider (noun): The common name for any member of this order.
  • A sea spider was crawling on the coral.
• Pycnogonid (noun/adjective): A member of the Order Pycnogonida; relating to this order.
  • The pycnogonid specimen was carefully preserved.

Synonyms

• Sea spiders: The common English name for the group.

Notes

• This is a specialized scientific term. In non-scientific contexts, the common name "sea spiders" is almost always used instead of "Order Pycnogonida".

Noun

1. sea spiders