| a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question. |
| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
arachnoid (əˈræknɔɪd) ![]() | |
| —n | |
| 1. | See meninges the middle of the three membranes that cover the brain and spinal cord |
| 2. | another name for arachnid |
| —adj | |
| 3. | of or relating to the middle of the three meninges |
| 4. | botany consisting of or covered with soft fine hairs or fibres |
| 5. | of or relating to the arachnids |
arachnoid a·rach·noid (ə-rāk'noid')
adj.
Resembling a cobweb. Used of the arachnoid membrane covering the brain and spinal cord.
| arachnoid (ə-rāk'noid') Pronunciation Key
The delicate membrane that encloses the spinal cord and brain and lies between the pia mater and dura mater. |