We found 5 dictionaries that define the word ethmoid bones:

General (3 matching dictionaries)

1. ethmoid bones: Vocabulary.com
2. ethmoid bones: Wiktionary
3. ethmoid bones: TheFreeDictionary.com

Medicine (2 matching dictionaries)

4. ethmoid bones: Merriam-Webster Medical Dictionary
5. ethmoid bones: Medical dictionary

(Note: See ethmoid_bone as well.)

Definitions from Wiktionary (ethmoid bone) ▸ noun:  The bone of the skull between the eyes and at the roof of the nose. ▸ Also see ethmoid_bone ▸ Words similar to ethmoid bones ▸ Usage examples for ethmoid bones ▸ Idioms related to ethmoid bones ▸ Wikipedia articles (New!) ▸ Words that often appear near ethmoid bones ▸ Rhymes of ethmoid bones ▸ Invented words related to ethmoid bones