echiuroid
Word Rarity
Very rare
Frequency: Zipf frequency 0.00 in modern English
15
Scrabble Score
9
Letters
2
Syllables
8
Unique Chars
Meaning
noun
A worm of the order Echiuroidea.
Example Sentences
- "Descriptions of echiuroids based on external characters or on a very summary enumeration of a few internal features have made it difficult to determine the generic position of a number of described forms."
- "Despite the resemblances of echiuroids to annelids and to sipunculids, the embryological studies of Newby (1940) on Urechis, together with other evidence, seem to indicate that echiuroids are closer to annelids than they are to molluscs."
- "Generally echiuroids are sedentary, remaining in their holes or burrows and extending the proboscis to feed."