Sea Spider Definition
noun
Any of various predatory marine arthropods of the class Pycnogonida, having a small body, four pairs of long walking legs, and a proboscis.
American Heritage
Webster's New World
Any arthropod in the taxonomic class Pycnogonida.
Wiktionary
Any marine animal whose appearance suggests a spider.
Wiktionary
Synonyms:
Other Word Forms of Sea Spider
Noun
Singular:
sea spider
Plural:
sea-spiders
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