the act of changing the location of something

place, fit, or thrust (something) into another thing

fit snugly into

put or introduce into something

the insertion of a cannula or tube into a hollow body organ

the introduction of a liquid (by pouring or injection) drop by drop

the act of enclosing something inside something else

the forceful insertion of a substance under pressure

the introduction of blood or blood plasma into a vein or artery