| Word | Definitions | Synonyms |
|---|---|---|
| araceous | (adjective) relating to a plant of the family Araceae | Synonyms: aroid |
| arachnidian | (adjective) relating to or resembling a member of the class Arachnida | Synonyms: arachnoid, spiderlike, spiderly, spidery |
| arachnoid | (adjective) relating to or resembling a member of the class Arachnida | Synonyms: arachnidian, spiderlike, spiderly, spidery |