function
to put your hand or another part of your body lightly onto something
touch
related to one thing in particular
specific
to make something, usually a liquid, flow in a particular direction by using something that works like a pump
pump (v)
the ability to see
sight
connected with breathing
respiratory
an act of holding something in position and preventing it from falling
support
the quality of being strong
strength
a liquid chemical that can react with and dissolve other materials
acid
an order given to someone
command
not complicated; easy to understand
simple
easily broken
fragile
the act of protecting something
protection
fully developed
adult
several different
various
difficult to understand; made of many parts that are connected
complex
a collection of cells that form the different parts of humans, animals, or plants
tissue
one of the long parts that connect the feet to the rest of the body
leg
more than two but not too many
several
a part of the body that has a particular purpose
organ