| sewage disposal | the disposal of sewage |
| Caledonian Canal | a canal in northern Scotland that links North Sea with the Atlantic Ocean, runs diagonally between Moray Firth at the northeastern end and Loch Linnhe at the southwestern end, now little used |
| Caloosahatchee Canal | a canal that connects Lake Okeechobee with the Caloosahatchee River in southern Florida to form part of the Cross-Florida Waterway |
| canal | long and narrow strip of water made for boats or for irrigation |
canal boat
narrow boat
narrowboat | a long boat that carries freight and is narrow enough to be used in canals |
| Gota Canal | a canal for small oceangoing ships to enter Lake Vanern in Sweden |
| Panama Canal | a ship canalmiles long across the Isthmus of Panama built by the United States (-) |
sewage disposal plant
disposal plant | a plant for disposing of sewage |
| sewage farm | a farm that is irrigated and fertilized with raw sewage |
sewage system
sewer system
sewage works | facility consisting of a system of sewers for carrying off liquid and solid sewage |
ship canal
shipway | a canal large enough for seagoing vessels |
| birth canal | a passage in the uterus and vagina through which a fetus passes during vaginal birth |
auditory meatus
acoustic meatus
ear canal
auditory canal
external auditory canal | either of the passages in the outer ear from the auricle to the tympanic membrane |
spinal canal
vertebral canal
canalis vertebralis | the canal in successive vertebrae through which the spinal cord passes |
duct
epithelial duct
canal
channel | a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance, the tear duct was obstructed, the alimentary canal, poison is released through a channel in the snake's fangs |
canal of Schlemm
Schlemm's canal
sinus venosus sclerae | a circular canal in the eye that drains aqueous humor from the anterior chamber of the eye into the anterior ciliary veins |
| root canal | the passage in the root of a tooth through which its nerve and blood vessels enter the pulp cavity |
| semicircular canal | one of three tube loops filled with fluid and in planes nearly at right angles with one another, concerned with equilibrium |
| Haversian canal | any of the many tiny canals that contain blood vessels and connective tissue and that form a network in bone |
inguinal canal
canalis inguinalis | oblique passage through the lower abdominal wall, in males it is the passage through which the testes descend into the scrotum and it contains the spermatic cord, in females it transmits the round ligament of the uterus |
cervical canal
canalis cervicis uteri | a spindle-shaped canal extending from the uterus to the vagina |
alimentary canal
alimentary tract
digestive tube
digestive tract
gastrointestinal tract
GI tract | tubular passage of mucous membrane and muscle extending about . meters from mouth to anus, functions in digestion and elimination |
subsidiary company
subsidiary | a company that is completely controlled by another company |
| Grand Canal | an inland waterway miles long in eastern China, extends from Tianjin in the north to Hangzhou in the south |
Panama Canal Zone
Canal Zone | a zone consisting of a strip of land across the Isthmus of Panama that contains the Panama Canal |
| Grand Canal | the major waterway in Venice, Italy |
| Suez Canal | a ship canal in northeastern Egypt linking the Red Sea with the Mediterranean Sea |
| Cape Cod Canal | a canal connecting Cape Cod Bay with Buzzards Bay |
| Erie Canal | an artificial waterway connecting the Hudson river at Albany with Lake Erie at Buffalo, built in the th century, now part of the New York State Barge Canal |
| New York State Barge Canal | a system of canals crossing New York State and connecting the Great Lakes with the Hudson River and Lake Champlain |
| canal | (astronomy) an indistinct surface feature of Mars once thought to be a system of channels, they are now believed to be an optical illusion |
feeder
tributary
confluent
affluent | a branch that flows into the main stream |
subordinate
subsidiary
underling
foot soldier | an assistant subject to the authority or control of another |
| subsidiary ledger | details of an account supporting the amount stated in the general ledger |
sewage
sewerage | waste matter carried away in sewers or drains |
canal
canalize
canalise | provide (a city) with a canal |
conducive
contributing(a)
contributive
contributory
tributary | tending to bring about, being partly responsible for, working conditions are not conducive to productivity, the seaport was a contributing factor in the growth of the city, a contributory factor |
| tributary | paying tribute, a tributary colony |
auxiliary
subsidiary
supplemental
supplementary | functioning in a supporting capacity, the main library and its auxiliary branches |
| tributary | (of a stream) flowing into a larger stream |