Search the Dictionary

The Thallophyta exist almost exclusively as gametophytes, the sporophyte being absent or rudimentary. By those who do not separate the Myxophyta from the Tallophyta as a distinct phylum the latter is treated as the lowermost group in the vegetable kingdom.

ower part of the throat. It is largest in fetal and early life, and disappears or becomes rudimentary in the adult.

to the Hemiptera. They are all of small size, and have narrow, broadly fringed wings with rudimentary nervures. Most of the species feed upon the juices of plants, and some, as those which attack grain, are very injurious to crops. Called also Physopoda. See Thrips.

A beginner in learning; one who is in the rudiments of any branch of study; a person imperfectly acquainted with a subject; a novice. [Written also tiro.] The management of tyros of eighteen Is difficult. Cowper.

ich come forth in winter, as the European species (Cheimatobia brumata). These moths have rudimentary mouth organs, and eat no food in the imago state. The female of some of the species is wingless. -- Winter oil, oil prepared so as not to solidify in moderately cold weather. -- Winter pear, a kind of pear that keeps…

blind mole rat (Spalax typhlus), native of Eastern Europe and Asia. Its eyes and ears are rudimentary, and its fur is soft and brownish, more or less tinged with gray. It constructs extensive burrows.