cleido-

• cleid- (before a vowel)

From Ancient Greek κλείς (kleís, “a key; the collarbone”) +‎ -o-.

• (Received Pronunciation) IPA^(key): /klʌɪ.də(ʊ)/
• (General American) IPA^(key): /klaɪ.doʊ/, /klaɪ.də/

cleido-

1. (anatomy) Of or pertaining to the clavicle.
2. Of or pertaining to a key.

• “cleido-”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.

• coiled, coldie, docile

From Ancient Greek.

cleido-

1. clavicle