18-letter words containing l, a, s, c, i
- triangle of forces — a triangle whose sides represent the magnitudes and directions of three forces whose resultant is zero and which are therefore in equilibrium
- ulcerative colitis — chronic ulceration in the large intestine, characterized by painful abdominal cramps and profuse diarrhea containing pus, blood, and mucus.
- ultrasonic testing — the scanning of material with an ultrasonic beam, during which reflections from faults in the material can be detected: a powerful nondestructive test method
- ultrasonic welding — the use of high-energy vibration of ultrasonic frequency to produce a weld between two components which are held in close contact
- unconstitutionally — not constitutional; unauthorized by or inconsistent with the constitution, as of a country.
- unenthusiastically — full of or characterized by enthusiasm; ardent: He seems very enthusiastic about his role in the play.
- universal coupling — a coupling between rotating shafts set at an angle to one another, allowing for rotation in three planes.
- university faculty — a division within a university comprising one subject area, or a number of related subject areas
- upper middle class — wealthy, highly-educated people
- venture capitalist — funds invested or available for investment in a new or unproven business enterprise.
- video surveillance — a system of monitoring activity in an area or building using a television system in which signals are transmitted from a television camera to the receivers by cables or telephone links forming a closed circuit
- watson-crick model — a widely accepted model for the three-dimensional structure of DNA, featuring a double-helix configuration for the molecule's two hydrogen-bonded complementary polynucleotide strands.
- welland ship canal — a ship canal in S Canada, in Ontario, connecting Lakes Erie and Ontario: 8 locks. 25 miles (40 km) long.
- wheelchair housing — housing designed or adapted for a chairbound person
- wildlife sanctuary — an area where wild animals and plants are protected
- world championship — an international competition in a particular sport or activity for people all around the world
- yeast nucleic acid — RNA.