Tylosis

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Tylosis \Ty*lo"sis\, n.; pl. {Tyloses}. [NL., fr. Gr. ty`los a
     lump, knot.] (Bot.)
     An intrusion of one vegetable cell into the cavity of
     another, sometimes forming there an irregular mass of cells.
     --Goodale.
     [1913 Webster]