| 释义 |
tuber
I. tu·ber \ˈt(y)übə(r)\ noun
(-s)
Etymology: Latin, hump, knob, tumor, truffle, tuber; akin to Greek typhē plant used as stuffing for beds, cattail, Old Norse thūfa mound, Old English thūf tuft, crest, Latin tumēre to swell — more at thumb
1.
a. : a short thickened fleshy stem or terminal portion of a stem or rhizome that is usually formed underground, bears minute scale leaves each with a bud capable under suitable conditions of developing into a new plant, and constitutes the resting stage of various plants (as the potato or the Jerusalem artichoke) — compare bulb, corm, tuberous root
b. : a fleshy root, rhizome, or other plant structure resembling a tuber in appearance
< a dahlia tuber >
— not used technically
c. tubers plural : a tuberous crop; specifically : a crop of potatoes
< soon be time to harvest tubers >
2. [New Latin, from Latin] : the type genus of Tuberaceae comprising fungi whose fruiting bodies are typical truffles
3. : an anatomical prominence : tuberosity, tubercle, protuberance
II. tub·er noun
(-s)
Etymology: tube (I) + -er
: one that makes or works with tubes: as
a. : a worker who installs or fits tubes or tubing (as in a boiler assembly)
b. : an operator of a machine who forms material (as rubber or plastic) into a continuous strip or tube; also : such a machine
< a tuber that coats wire with insulation >
c. : copper IV
d. : a textile worker who rewinds cloth from large rolls into smaller rolls to inspect it and cut out imperfections — called also winder
e. : a worker who makes round belting from strips of leather |