- The chest, especially the anterior wall; breast; thorax.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Examples from the Web for pectus
When the whole under-side of the Trunk is spoken of, it is called the Pectus.An Introduction to Entomology: Vol. III (of 4)
Minimo tangetur, inquit ille (manibus in pectus compositis) usque ad illam horam———Quam horam?The Life and Opinions of Tristram Shandy, Gentleman
The under side of the thorax is frequently spoken of by writers, in describing butterflies, as the pectus, or breast.The Butterfly Book
William Jacob Holland
Prudentius, Peristeph., 1027: "Pectus sacrato dividunt venabulo."The Oriental Religions in Roman Paganism
Pectus est quod disertos facit—It is the heart which inspires eloquence.