The four major classes of organic molecules include carbohydrates, proteins, lipids and nucleic acids .â. Carbohydrates. The term carbohydrate is actually a descriptor of what these molecules are composed of; carbon hydrates, in a ratio of one carbon molecule to one water molecule (CH2O)n.
postforming. (engineering). Forming, bonding, or shaping of heated, flexible thermoset laminates before the final thermoset reaction has occurred; upon cooling, the formed shape is held.1  Facebook.orming, bonding, or shaping of heated, flexible thermoset laminates before the final thermoset reaction has occurred; upon cooling, the formed shape is held.
Definition of pre-. 1a (1) : earlier than : prior to : before Precambrian prehistoric (2) : preparatory or prerequisite to premedicalb : in advance : beforehand precancel prepay. 2 : in front of : anterior to preaxial premolar. preadmission. preadult. preagricultural. preanesthetic.