a·rach·noid ( -r k noid )adj. 1. Anatomy Of or relating to a delicate membrane enclosing the spinal cord and brain. 2. Of, relating to, or resembling arachnids. 3. Covered with or consisting of thin, soft, entangled hairs or fibers resembling those of a cobweb or spider's web. n. 1. See arachnid. 2. Anatomy A delicate membrane that encloses the spinal cord and brain and lies between the pia mater and dura mater. [New Latin arachno  d s, from Greek arakhnoeids, cobweblike : arakhn, spider + -oeids, -oid.] |
arachnoid [əˈræknɔɪd]
n
1. (Life Sciences & Allied Applications / Anatomy) the middle of the three membranes (see meninges) that cover the brain and spinal cord
2. (Life Sciences & Allied Applications / Zoology) another name for arachnid
adj
1. (Life Sciences & Allied Applications / Anatomy) of or relating to the middle of the three meninges
2. (Life Sciences & Allied Applications / Botany) Botany consisting of or covered with soft fine hairs or fibres
3. (Life Sciences & Allied Applications / Zoology) of or relating to the arachnids
| arachnoid (-rknoid) The delicate membrane that encloses the spinal cord and brain and lies between the pia mater and dura mater. |
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. | arachnoid - the middle of the 3 meninges leptomeninges - the two innermost layers of the meninges; cerebrospinal fluid circulates between these innermost layers |
| 2. |  arachnoid - air-breathing arthropods characterized by simple eyes and four pairs of legsarthropod - invertebrate having jointed limbs and a segmented body with an exoskeleton made of chitin Arachnida, class Arachnida - a large class of arthropods including spiders and ticks and scorpions and daddy longlegs; have four pairs of walking legs and no wings harvestman, Phalangium opilio, daddy longlegs - spiderlike arachnid with a small rounded body and very long thin legs scorpion - arachnid of warm dry regions having a long segmented tail ending in a venomous stinger false scorpion, pseudoscorpion - small nonvenomous arachnid resembling a tailless scorpion whip scorpion, whip-scorpion - nonvenomous arachnid that resembles a scorpion and that has a long thin tail without a stinger spider - predatory arachnid with eight legs, two poison fangs, two feelers, and usually two silk-spinning organs at the back end of the body; they spin silk to make cocoons for eggs or traps for prey acarine - mite or tick | |
| Adj. | 1. |  arachnoid - relating to or resembling a member of the class Arachnidazoological science, zoology - the branch of biology that studies animals |
Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content.
| ?Page tools | ||
|---|---|---|
|