1) Genus ascaridia 2) Worm genus 
Ascaridia ə is the name of a genus of parasitic nematodes. Members of the genus are primarily intestinal parasites of birds. There are three well known species, namely, A. galli found mostly in chicken, A. dissimilis in turkeys, and A. columbae in pigeons. Lesser known species such as A. hermaphrodita, A. sergiomeirai, A. ornata, A. nicobarensis ...
A genus of nematode worms. A. Galli and a. Lineata are important intestinal parasites of domestic fowl. ... (12 Dec 1998) ... 
[n] - roundworm having a preanal sucker
genus Ascaridia noun roundworm having a preanal sucker