Etymology: Middle French ‘social’ (14c), from Latin socialis (“of companionship, of allies; united, living with others”), from socius (“a companion, fellow, partner, associate, ally”).
- Living organisms, including humans, are social when they live collectively in interacting populations, whether they are aware of it or not, and whether the interaction is voluntary or involuntary. (wikipedia)
- Of or relating to human society, the interaction of the individual and the group, or the welfare of human beings as members of society (Meriam-Webster)
- Attitudes, orientations, or behaviours which take the interests, intentions, or needs of other people into account.
- Of or relating to people or society in general
Etymology: 15c, Middle French ‘optique’ (13c), from Latin opticus “of sight or seeing”, from Ancient Greek optikós, “of or having to do with sight”, from optos visible,seen; root of opsesthai “going to see,”
- The branch of physics which involves the behaviour and properties of light, including its interactions with matter and the construction of instruments that use or detect it. (wikipedia)
- Of or relating to vision or the eye (Meriam-Webster)
- Transparent measurement – (Brit) trademark a device attached to an inverted bottle for dispensing measured quantities.