Defn: One of the large cells in woody tissue which have spiral, annular, or other markings, and are connected longitudinally so as to form continuous ducts.
TRACHEAL
Tra"che*al, a. Etym: [Cf.F.tracheal.]
Defn: Of or pertaining to the trachea; like a trachea.
TRACHEARIA
Tra`che*a"ri*a, n.pl. Etym: [NL.] (Zoöl.)
Defn: A division of Arachnida including those that breathe only by means of tracheæ. It includes the mites, ticks, false scorpions, and harvestmen.
TRACHEARY
Tra"che*a*ry, a.
Defn: Tracheal; breathing by means of tracheæ.
— n. (Zoöl.)
Defn: One of the Trachearia.
TRACHEATA
Tra`che*a"ta, n.pl. Etym: [NL.] (Zoöl.)
Defn: An extensive division of arthropods comprising all those which breathe by tracheæ, as distinguished from Crustacea, which breathe by means of branchiæ.