masto-

a combining form meaning “breast,” used in the formation of compound words: mastopathy.
Also especially before a vowel, mast-.

Origin of masto-

combining form representing Greek mastós breast

Words nearby masto-

mastigophora, mastigophoran, mastigote, masting, mastitis, masto-, masto-occipital, mastocarcinoma, mastocyte, mastocytoma, mastocytosis

British Dictionary definitions for masto-

masto-

before a vowel mast-

combining form

indicating the breast, mammary glands, or something resembling a breast or nipple mastodon; mastoid

Word Origin for masto-

from Greek mastos breast

Medical definitions for masto-

masto-

pref.

Breast; mammary gland; nipple:mastectomy.