osteophyte - a small pathological bony outgrowth. I think “exostosis” is used more commonly.

exostosis
n.,
pl. 3ses# 73scz#8 5ModL < Gr exostbsis < ex3, outside + osteon, a bone: see OSTEO36 an abnormal bony growth on the surface of a bone or tooth

osteosarcoma - a malignant tumor of bone. Embrologically, the body is built from three layers, epidermal, endodermal, and mesodermal. Mesodermal malignancies are far less common, and are called sarcoma

mesenchyme
5< MES3 + ModL 3enchyma, suffix denoting a type of cell tissue: see PARENCHYMA6 Embryology that part of the unspecialized mesoderm from which the connective tissues, cartilage, bone, blood, heart, and lymphatic vessels are derived
mes[en[chy[mal 7mes e%4ki m!l, mez38
adj.

ostium
n.,
pl. 3ti[a 73!8 5L ostium: see OSTIARY6 Anat. an opening or orifice
Ostia
ancient city in Latium, at the mouth of the Tiber, that was the port of Rome

ounce
n.
5OFr unce < L uncia, a twelfth, twelfth part of a foot or pound, orig., unit, akin to L unus, ONE6
1 a unit of weight, equal to Y pound, avoirdupois or ! pound troy
2 FLUID OUNCE
3 any small amount !an ounce of care" Abbrev. oz

ounce2 7/ns8
n.
5ME once < OFr < l‘once, mistaken for lonce < VL *luncea < L lynx, LYNX6 SNOW LEOPARD

Interesting that originally an ounce meant a twelfth, it now means a sixteenth.
And remember, troy weight is used for silver, gold, and precious stones.
My dictionary does not give difference between troy weight, and avoirdupois,
used for ordinary commerce.