Definition

Noun: 1. A marine arthropod: Any of various small marine arthropods that are not true spiders but resemble them in appearance, characterized by having very small, thin bodies and exceptionally long, slender legs.

Usage

• The term "sea spider" is used to describe a specific group of marine animals found in oceans worldwide, from shallow waters to the deep sea.
• It is a common name for creatures belonging to the class Pycnogonida.
• Example: "While exploring the tide pool, we found a sea spider clinging to a piece of seaweed."

Advanced Usage

• Scientific Context: In marine biology, "sea spider" is the informal common name for pycnogonids. Their scientific classification distinguishes them from terrestrial arachnids despite the visual similarity.
  • Example: "The researcher studied the unique circulatory system of the sea spider."

Variants and Related Words

• Pycnogonid (n.): The formal scientific term for a sea spider.
  • Example: "The diversity of pycnogonids in the Antarctic is remarkably high."

Synonyms

• Pycnogonid (scientific synonym)

Different Meanings

• The term "sea spider" refers exclusively to marine arthropods of the class Pycnogonida. It does not refer to true spiders (order Araneae) that live in or near the sea.

Noun

1. any of various small spiderlike marine arthropods having small thin bodies and long slender legs