Relier Pairs VocabularyVersion en ligne Vocabulary par Roberto Carlos Flores Espinoza 1 Trail /treɪl/ 2 Gregarious /ɡrɪˈɡeəriəs/ 3 Aphid /ˈāfid/ 4 Upwind /ˌəpˈwind/ 5 Excocrine /ˈeksəˌkrin/ 6 Forage /ˈfɔːrɪdʒ/ 7 Airborne /ˈerˌbôrn/ 8 Caste /ˈkast/ Adv. Adj. In the opposite direction to the way in which the wind is blowing. N. A specialized form (such as the worker of an ant or bee) of a polymorphic social insect that carries out a particular function in the colony. Adj. Producing, being, or relating to a secretion that is released outside its source. N. A very small insect that is harmful to plants. N. A long line or series of marks that is left by somebody/something. 1. Food for animals especially when taken by browsing or grazing Example: The grass serves as forage for livestock. 2. The act of foraging : search for provisions Adj. Liking to be with other people. Adj. Transported by air.