Definitions

1. adjective

causing alarm or giving the alarm; having a loud, ringing sound

“The alar cry of the bird echoed through the forest.”

2. noun

one of the wing-like structures that protect the eyes of certain insects, especially a part of the head in beetles and weevils

“The alar organs of the beetle played a vital role in its navigation system.”

3. adverb

in a way that causes alarm or is alarming

“He walked alar through the dark alley, fearing for his safety.”