1. To be like (or of) the animal species known as
reptiles. Examples:
snake skin boots,
cold blooded humans, anything that
slithers
2. A part of the
human brain stem. It is a remnant of the
prehistoric past. The reptilian brain acts on
stimulus and
response. It is responsible for quick decisions without
conscious thought. The reptilian brain is
focused on
survival and
propigation. It takes
control when one is danger without time to think.