Definitions (1)

-aerial root
Any root produced above the growing medium.
-anther
The part of the stamen containing the pollen; the end of the column.
-backbulb
An old pseudobulb behind the part of a sympodial orchid that is actively growing. Although there may be no leaves, the presence of undamaged "eyes" is a sign that growth is possible.
-bifoliate
Having two leaves on the same bulb.
-cane
An elongated psuedobulb, usually used when describing Dendrobiums.
-crock
Small pieces of broken earthenware or flower pots placed in the bottom of a pot when repotting to aid in drainage.
-cultivar
An individual plant or its vegetative propagations, a horticultural variety.
-epiphyte, epiphytic
A plant which naturally grows upon another plant but does not derive any nourishment from it. Many of the orchids in cultivation are epiphytic.
-eye
The bud of a sympodial orchid that will eventually develop into a new lead.
-foliar spray
Many minor nutrients and trace elements beneficial to growth are best absorbed through the stomata of an orchids leaves when mixed with water and sprayed on the plant.
-genus
(pl. genera) A natural grouping of closely related species.
-habitat
The type of geographic location where a plant normally grows.
-hybrid
The offspring of a cross between either species or hybrids.
-inflorescence
The flowering portion of a plant.
-intergeneric hybrid
A hybrid between members of two or more genera.
-keiki
A Hawaiian word referring to a baby plant produced asexually by an orchid plant, usually used when referring to Dendrobiums or Vandaceous orchids.
-lead
An immature vegetative growth on a sympodial orchid that will develop into a flower-producing structure.
-lip
A modified petal of the orchid flower specialized to aid in pollination and different from the other petals.
-lithophyte
An orchid that grows on rocks.

source:orchids.com