408 A COMPENDIUM OF 
indicate a protuberance or a process of bone, 
Example: In the thigh and bones of the arm. 
In botany, any irregular swelling on the sur- 
face of a plant, or any enlargement at the 
base of a seed-vessel. 
Apothecary—a-poth’-e-kar-i (Lat. apotheca, a 
storehouse; Gr. apotheke, apo, from, theke, a 
box or chest). One who prepares and sells 
drugs and medicines. 
Apothecium—ap’-o-the’-sha-um. In botany, 
a case or cluster of spore cells (in lichens, as 
a rule) cup-shaped. 
Apyrenus—a’-pi-re’-nus (Gr. a, without, and 
puren, a seed). Fruit which produces no 
seed. Example: Some varieties of the cul- 
tivated orange and pineapple, etc, 
Arachnoid—a-rack’-noyd (Gr. arachne, a spi-~ 
der, ezdos, form), In anatomy the spider- 
like membrane covering the brain, termed 
piamater. In botany, a tissue of fine downy 
fibers, 
Arbor, or arbour—ar’-ber (Lat., a tree). A 
place shaded either by trees or vines. 
Arborescent—ar’-bo-res’-ent (Lat. ardorescens, 
grow toa tree). Resembling a tree; becom- 
ing woody. 
Arefaction—ar’-e-fak’-shun (Lat. arco, I am 
dry, facio, 1 make). The act of drying; the 
act of plants drying rapidly. 
Aril or arillus—a-ril’-lus (French arz//e; Span- 
ish, ari//o, and from the Lat. aridus, dary). 
he covering or exterior of a seed attached 
at the base only. Example: the mace of the 
nutmeg, . 
