alar

1. Resembling, containing, or composed of wings or alae.
2. Anatomy. Concerned with the armpit; axillary.

[Latin ālāris, from āla, wing.]

1. Resembling, containing, or composed of wings or alae; axillary.
2. Relating to the ala of such structures as the nose, sphenoid bone, and sacrum.

1. pertaining to or like a wing.
2. pertaining to the axilla.

• a. cartilage — a nasal cartilage which supports the rim of the nostril of some animals such as the horse.
• a. fold — extends from the nostril to the ventral nasal concha. It forms the medial and ventral walls of the false nostril in the horse.
• a. foramen — a third foramen which perforates the wing of the atlas in some animal species.
• a. plate — dorsal bulge of the embryonic neural tube, destined to develop into the dorsal horn of the spinal cord.
• rostral a. fold — one of a group of foramina in the caudal part of the orbit.

The adjective has 2 meanings:

Meaning #1: (botany) of or relating to the axil
  Synonym: axillary

Meaning #2: (biology) having or resembling wings
  Synonyms: alary, aliform, wing-shaped