жилка означава в английски

nerve [nerves]▼(botany: vein; grain in wood)
noun
[UK: nɜːv] [US: ˈnɝːv]

rib [ribs]▼(botany: prominent vein in a leaf)
noun
[UK: rɪb] [US: ˈrɪb]

tentacle [tentacles]▼(glandular hairs on leaves)
noun
[UK: ˈten.tək.l̩] [US: ˈten.tək.l̩]

vein [veins]▼(thickened portion of a leaf)
noun
[UK: veɪn] [US: ˈveɪn]