These comments apply to whistles with a mouth area at least equal to the cross-sectional area of the whistle.
The orangutan has a large head with a prominent mouth area.
Besides the material used, the two designs can be differentiated by differences in the eyes, the ears, and the mouth area.
She did so by testing the effects of bee venom and acetic acid injections into the mouth area.
The mouth area of the Zrnovska river is 38 km2, while its length is 24 km.
The head begins to project freely over the mouth area.
The face changes to grey or brown, while the mouth area, the whisker area and the ears are slightly brighter.
Temescal Creek near the mouth area is channelized with concrete linings.
On cows, the judge usually cannot check their teeth without using a head bail, as cattle are sensitive around the mouth area.
The mouth area, especially, seemed to flicker briefly with faint lightning.