"Osculation" Natural Recordings by Native Speakers
Osculation refers to the process or point of contact between two surfaces, especially a lips-like curve or contoured edge, as in dentition (the arrangement of teeth in a jaw). In a broader sense, osculation can also describe the act of kissing or touching lips together.
Oscitation is a rare or obsolete word that refers to a tremulous or quivering motion, especially of the voice or of the lips. It can also describe a slight tremble or vibration.
Osculatory refers to kissing or the act of kissing. It can also describe the contact between two surfaces, especially in a gentle or superficial manner. In a medical context, it refers to the touch or contact between the lips of the mouth, such as the contact between the oral mucosa and the tongue. The term is often used in a formal or technical sense to describe the sensation or movement of two surfaces coming together, often in a fleeting or brief manner.