the killing of one's father
patricide
a cut, often made to the body during surgery
incision
the head of a group or the commander of a ship
captain
a relationship or comparison of quantities or amounts
ratio
an instrument for measuring distances and drawing circles; shows directions
compass
something poisonous; especially a chemical, used to kill weeds or other plants
herbicide
cutting anything unnecessary away so as to make something clear and brief
concise
a city where the heads of government meet
capital
a shape with a circle at the bottom and a sharp point at the top
cone
the length and width of something that has no thickness: a two-dimensional object
surface area
the killing of one's mother
matricide
cut out or remove
excise
cut off the head
decapitate
curving
convex
curved like the inside of a circle; hollow
concave
killing a human being
homicide
having to do with or characterized by accuracy and exactness ("cutting away" anything not accurate or exact)
precision
one for each "head," or person
per capita
a line going from the center of a circle to its outside
radius
a transparent solid body, often a triangle used for dispersing light into a spectrum
prism
a substance for killing germs
germicide
the act of making up your mind about something
decision
having the ability to do something
capable
the study of shapes
geometry
What is the measurement of a right angle?
90 degrees