~ 1
■ noun a body of traditions and knowledge on a subject: farming ~.
Origin
OE lār 'instruction', of Gmc origin: related to learn .
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~ 2
■ noun Zoology the surface on each side of a bird's head between the eye and the upper base of the beak, or between the eye and nostril in snakes.
Origin
C19: from L. lorum 'strap'.