Measurement

Noun vertical height of an object above some chosen level
Flying snakes can’t actually gain altitude. They’re gliders, using the speed of free fall and contortions of their bodies to catch the air and generate lift.
Noun unit measuring the loudness of a sound
Their buzzing can reach 90 decibels, as loud as some power motors. They have been seen in clusters of up to 1.5 million per acre. As if from some horror movie, cicada nymphs have been described as “boiling out of the ground."
Noun straight line passing from side to side through the center of a circle or sphere
Each eyeball is approximately 16 mm (over half an inch) in diameter and is as large as the tarsier's entire brain.
Noun measurement around the middle of something, esp. a person's waist
One shopkeeper emerged with a tape measure and proceeded to measure my height and girth -- each time holding it up to the small crowd. (Clarence Holbrook, Loveland, CO)
Noun a metric unit of length equal to 1000 meters (or 0.621371 miles)
With a little luck and a crack team behind him, Felix Baumgartner plans to skydive into the record books. Climbing to roughly 23 miles (37 kilometers), he'd be the first human to achieve supersonic speed with just his body.
Noun greatness of size or amount
A study at UCLA demonstrated that brandishing a weapon does in fact make someone appear bigger and stronger, as our brains are hardwired to translate the magnitude of a threat into size and strength.
Noun physical property causing a body to have weight in a gravitational field
Using the Gemini Telescope on Mauna Kea, Hawaii, a team of astronomers calculated the black hole’s mass, which is vastly larger than the black hole in the center of the Milky Way.
Adjective measuring or quantifying something else
Doctors have built a pulseless artificial heart, helping keep people alive, even though by current metric standards they are not living.
Noun metric unit of length equal to one billionth of a meter
Dealing with things smaller than 100 nanometers (a human hair is 80,000 nm wide), nanotechnologies are poised to revolutionize medicine.