Abstract: A teat for a baby's bottle, the teat comprising a body (3) that is generally hemispherical in shape and whose apex is extended axially by a projecting portion in the form of a nipple (5), the teat being characterized in that its nipple (5) is fitted with potentially dynamic means (10) designed to implement a spring effect firstly to enable axial stretching followed by a return to initial length, and secondly to reinforce stiffness so that radial compression is limited, thereby enabling suction to take place by pressure reduction only and not by squeezing.