A pattern of veins in a leaf or similar structure where the veins radiate outward from a central point like rays of light.
From actino- (Greek aktis, 'ray') + drome (from Greek dromos, 'running' or 'path'). The term describes the path pattern of vascular tissue, established in botanical terminology by the 19th century.
Look at a maple leaf and you're seeing an actinodrome pattern—those radiating veins aren't just pretty; they're an efficient design that delivers water and nutrients from the stem to every part of the leaf simultaneously, like roads radiating from a central hub.
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