Learn how to say Ethmoid correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word ethmoid:
a square bone at the root of the nose, forming part of the cranium, and having many perforations through which the olfactory nerves pass to the nose:
ossification in the ethmoid region
mid 18th century: from Greek ēthmoeidēs, from ēthmos ‘a sieve’