| ARACHNOID | • arachnoid adj. Relating to or resembling spider webs; covered with or composed of soft loose hairs or fibers. • arachnoid adj. (Anatomy) Relating to the arachnoid mater.
 • arachnoid n. (Neuroanatomy) Ellipsis of arachnoid mater..
 | 
| ARACHNOIDS | • arachnoids n. Plural of arachnoid. • ARACHNOID n. the arachnoid membrane, a fine delicate membrane which is the middle of the three meninges enveloping the brain and spinal cord.
 | 
| ARACHNOIDAL | • arachnoidal adj. (Anatomy) Pertaining to the arachnoid mater; arachnoid. • ARACHNOIDAL adj. like a cobweb, covered with fine hairs.
 | 
| ARACHNOLOGY | • arachnology n. The study of the Arachnida. • ARACHNOLOGY n. the study of spiders.
 | 
| ARACHNOPHOBE | • arachnophobe n. A person who fears spiders. • ARACHNOPHOBE n. one with a morbid fear of spiders.
 | 
| SUBARACHNOID | • subarachnoid adj. (Anatomy, relational) Located or occurring below the arachnoid mater, often specifically between the… • SUBARACHNOID n. the space situated under the arachnoid membrane.
 | 
| ARACHNOIDITIS | • arachnoiditis n. (Pathology) A neuropathic disease caused by the inflammation of the arachnoid, one of the membranes… • ARACHNOIDITIS n. inflammation of the arachnoid membrane.
 | 
| ARACHNOLOGIES | • ARACHNOLOGY n. the study of spiders. | 
| ARACHNOLOGIST | • arachnologist n. One who is engaged in arachnology, the study of arachnids. • ARACHNOLOGIST n. one who studies arachnids.
 | 
| ARACHNOPHOBES | • arachnophobes n. Plural of arachnophobe. • ARACHNOPHOBE n. one with a morbid fear of spiders.
 | 
| ARACHNOPHOBIA | • arachnophobia n. An abnormal or irrational fear of arachnids (especially spiders). • ARACHNOPHOBIA n. fear of spiders.
 | 
| ARACHNOPHOBIC | • arachnophobic adj. Suffering from arachnophobia. • arachnophobic n. Synonym of arachnophobe.
 • ARACHNOPHOBIC n. one with a morbid fear of spiders.
 | 
| SUBARACHNOIDS | • SUBARACHNOID n. the space situated under the arachnoid membrane. | 
| ARACHNOLOGICAL | • arachnological adj. (Zoology) Of or relating to arachnology, the study of arachnids. • ARACHNOLOGICAL adj. related to arachnology.
 | 
| ARACHNOLOGISTS | • arachnologists n. Plural of arachnologist. • ARACHNOLOGIST n. one who studies arachnids.
 | 
| ARACHNOPHOBIAS | • arachnophobias n. Plural of arachnophobia. • ARACHNOPHOBIA n. fear of spiders.
 | 
| ARACHNOPHOBICS | • arachnophobics n. Plural of arachnophobic. • ARACHNOPHOBIC n. one with a morbid fear of spiders.
 | 
| SUBARACHNOIDAL | • subarachnoidal adj. (Anatomy) Alternative form of subarachnoid. • SUBARACHNOIDAL adj. situated under the arachnoid membrane, also SUBARACHNOID.
 | 
| ARACHNOIDITISES | • ARACHNOIDITIS n. inflammation of the arachnoid membrane. |