"tarmacs" in the noun sense
1. tarmacadam, tarmac
a paving material of tar and broken stone mixed in a factory and shaped during paving
2. tarmacadam, tarmac, macadam
a paved surface having compressed layers of broken rocks held together with tar
"tarmacs" in the verb sense
1. macadamize, macadamise, tarmac
surface with macadam
"macadam the road"
Source: WordNet® (An amazing lexical database of English)
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