Join Us On

An Encyclopædia Britannica Company

Spanish Central

Browse Dictionary Browse Thesaurus

Get our free apps!iPhone•iPad•Android

Word of the Day

Blog: Words at Play

Dictionary

sea spider

noun

Definition of SEA SPIDER

: any of various small long-legged marine arthropods (class Pycnogonida) that superficially resemble spiders

ADVERTISEMENT

First Known Use of SEA SPIDER

1855

Rhymes with SEA SPIDER

abider, backslider, collider, confider, decider, derider, divider, free rider, hang glider, hard cider, insider, joyrider, lowrider, misguider, night rider, outrider, outsider, presider, provider, resider, Top-Sider, wolf spider

Learn More About SEA SPIDER

Britannica.com: Encyclopedia article about "sea spider"

Browse

Next Word in the Dictionary: sea squabPrevious Word in the Dictionary: season ticketAll Words Near: sea spider

ADVERTISEMENT

Seen & Heard

What made you want to look up sea spider? Please tell us where you read or heard it (including the quote, if possible).

View Seen & Heard Highlights from Around the Site

Test Your Vocabulary!

10 Charming Words for Nasty People

Put-downs with flair

When "Literally" isn't, well, literal

How to use a word that (literally) drives some people nuts.

Know what this is?

Test your vocab with our fun, fast game

Ailurophobia, and 9 other unusual fears

Join Us

Merriam-Webster
on Facebook

Merriam-Webster
on Twitter

Bookstore: Digital and Print

Merriam-Webster references for Mobile, Kindle, print, and more.

See All

Other Merriam-Webster Dictionaries

© Merriam-Webster, Incorporated