The Marmaray, connecting the European and Asian shores of Istanbul, is the world's first sea tunnel between two continents. Turkey has opened the world's first underwater rail link between two continents, connecting Asia and Europe and allowing Prime Minister Tayyip Erdogan to realise a project dreamt up by Ottoman sultans more than a century ago.
The labium forms the floor of the dragonfly's mouth, the labrum forms the top, while the hypopharynx is inside the mouth and is used in swallowing. Conceptually, then, the mosquito's proboscis is an adaptation of the mouthparts that occur in other insects. The labium still lies beneath the other mouthparts, but also enfolds them, and it has been extended into a proboscis.
Noun. 1. proboscis-the human nose (especially when it is large). nose, olfactory organ-the organ of smell and entrance to the respiratory tract; the prominent part of the face of man or other mammals; he has a cold in the nose.he mouth of the animal was situated at the extremity of a proboscis some sixty or seventy feet in length, and about as thick as the body of an ordinary elephant.