Search the Dictionary

he pith, woody fiber, and bark concentrically arranged. Divided into two subclasses: Angiosperms, having the woody fiber interspersed with dotted or annular ducts, and the seed contained in a true ovary; Gymnosperms, having few or no ducts in the woody fiber, and the seeds naked. 2. Monocotyledons (called also Endogens…

Perisperm in an early condition.

A thorny leguminous tree (Gleditschia monosperma) which grows in the swamps of the Mississippi valley.

n Ocean. It sometimes becomes sixty feet long. -- Whale shot, the name formerly given to spermaceti. -- Whale's tongue (Zoöl.), a balanoglossus.

an open space. Caulfeild & S. (Dict. of Needlework). -- Wheel tree (Bot.), a tree (Aspidosperma excelsum) of Guiana, which has a trunk so curiously fluted that a transverse section resembles the hub and spokes of a coarsely made wheel. See Paddlewood. -- Wheel urchin (Zoöl.), any sea urchin of the genus Rotula having…

A large mass of tough sinewy substance in the head of sperm whales, just above the upper jaw and extending in streaks into the junk above it. It resembles blubber, but contains no oil. Also, the part of the head in which it occurs.

An organic body or cell having locomotion, as a spermatic cell or spermatozooid.

Same as Zygosperm.