To save this word, you'll need to log in.
Definition of trimmer signal
: a signal near the summit in a hump yard to convey information about movements from the classification tracks toward the summit
Comments on trimmer signal
What made you want to look up trimmer signal? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
Homophone Quiz
- In order to judge how people felt, the senator's office hired a firm to take a
______.
Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridgedWords at Play
Ask the Editors
Share trimmer signal