'Pycnogonida' definitions:
Definition of 'Pycnogonida'
From: WordNet
noun
Sea spiders [syn: Pycnogonida, order Pycnogonida]
Definition of 'Pycnogonida'
From: GCIDE
- Pycnogonida \Pyc`no*gon"i*da\, n. pl. [NL., fr. Gr. ? thick crowded + ? knee.] (Zool.) A class of marine arthropods in which the body is small and thin, and the eight legs usually very long; -- called also Pantopoda. [1913 Webster]
- Note: The abdomen is rudimentary, and the triangular mouth is at the end of a tubular proboscis. Many of them live at great depths in the sea, and the largest of them measure two feet across the extended legs. [1913 Webster]