Definition of Grinning

The simplified molecular-input line-entry system or SMILES is a specification in form of a line notation for describing the structure of chemical molecules using short ASCII strings. SMILES strings can be imported by most molecule editors for conversion back into two-dimensional drawings or three-dimensional models of the molecules.

SmILE is a showcase car designed for Greenpeace in 1996 to demonstrate how fuel efficient a car can be. The name stands for "Small, Intelligent, Light, Efficient'. It is based on the Renault Twingo, halving its fuel consumption to 3.3 l/100km (30 km/l or 85 mpg (imperial) / 68mpg (US)).

A smile is a facial expression formed by flexing the muscles near both ends of the mouth. The smile can also be found around the eyes (see 'Duchenne Smiling' below). Among humans, it is an expression denoting pleasure, , happiness, or amusement, but can also be an involuntary expression of anxiety, in which case it is known as a . Smiling is something that is understood by everyone despite culture, race, or religion; it is internationally known. Cross-cultural studies have shown that smiling is a means of communicating emotions throughout the world. But there are large differences between different cultures. A smile can also be spontaneous or .

Smile (sometimes typeset with the idiosyncratic partial capitalization SMiLE) is an album by The Beach Boys recorded throughout 1966 and 1967. The project was intended by its creator Brian Wilson as the follow-up to Pet Sounds, but was never completed in its original form. During the years Smile remained unavailable, it had come to be regarded as the most famous unreleased album of all time.