| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| the offspring of a zebra and a donkey. |
calcar cal·car (kāl'kär')
n. pl. cal·car·i·a (kāl-kâr'ē-ə)
A small spurlike projection from a structure.
An internal septum at the level of division of arteries and confluence of veins when branches or roots form an acute angle.
A dull spine or projection from a bone.
A horny outgrowth from the skin.
| calcar (kāl'kär') Pronunciation Key
A spur or spurlike projection, such as one found on the base of a petal or on the wing or leg of a bird. |