Origin of corm
Related formscorm·like, adjectivecor·moid, adjectivecor·mous, adjective
Examples from the Web for corm
They tend to rise out of the ground, because the new bulb or corm forms on the top of the old one.The Practical Garden-Book|C. E. Hunn
Compare again the corm of Crocus and the bulb of Onion to find the stem in each.Outlines of Lessons in Botany, Part I; From Seed to Leaf|Jane H. Newell
In the later stages mix less sand with the soil, and when potting always leave the crown of the corm clear.
Whichever method is adopted, the crown of the corm should be left about four inches beneath the surface.
The corm of the meadow-saffron attains its full size in June or early in July.