ala
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(ā'lə) 
n., pl., a·lae (ā'lē).
n., pl., a·lae (ā'lē).
- Zoology. A wing or winglike structure or part.
- Anatomy. A flat, winglike anatomic process or part, especially of bone.
- Botany. The flattened border of some stems, fruits, and seeds, or either one of the two side petals of certain flowers in the pea family.
[Latin āla, wing.]
1. An alcove or small room opening off the atrium of an ancient Roman house.
2. A small room on each side of a cella.
pl. alae
Wing-like portion of the ilium. Its thickened margin is called the iliac crest.
(ā'lə)
n., pl. a·lae (ā'lē).
n., pl. a·lae (ā'lē).
A winglike or expanded structure or part, such as the external ear.
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Pl. alae [L.] a winglike process, e.g. the cervical and caudal alae of nematodes; the wing-like structures at the esophageal and tail regions of the worm.
- a. cinerea — an area on the floor of the 4th ventricle; the trigonum nervus vagi of the medulla oblongata.
- a. lobuli centralis — a lobule of the rostral part of the cerebellar hemispheres that extends from the vermis.
- a. nasi — the wing of the nose; the cartilaginous flap on the outer side of either nostril.
- a. ossis illium — wing of the ilium.
- sacral a. — the lateral parts of the base of the sacrum which carry the articular surfaces for the ilium and the transverse processes of the last lumbar vertebra.
- a. spuria — the alula.
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