a stage of development according to freud when a child becomes focused on oral pleasures such as sucking.

The stage of development according to Freud when a child becomes focused on oral pleasures such as sucking is called the oral stage. This is the first stage in Freud's theory of psychosexual development, occurring from birth until about 18 months of age. During this stage, the infant's libido is centered on the mouth, and activities like sucking, biting, breastfeeding, and putting objects in the mouth provide pleasure and satisfaction. Freud suggested that experiences during this stage greatly influence personality development, and fixation at the oral stage can lead to behaviors in adulthood such as smoking, nail biting, overeating, or excessive talking.