单词 | pappus |
释义 | pappus[ pap-uhs ] / ˈpæp əs / noun, plural pap·pi [pap-ahy]. /ˈpæp aɪ/. Botany.a downy, bristly, or other tuftlike appendage of the achene of certain plants, as the dandelion and the thistle. Origin of pappus1695–1705; <New Latin <Greek páppos down, literally, grandfather (taken as greybeard, white hairs, down) Words nearby pappuspappadam, pappardelle, pappenheimer, Pappenheimer body, pappose, pappus, Pappus of Alexandria, pappy, paprika, Pap smear, PAP technique Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for pappusBritish Dictionary definitions for pappuspappus / (ˈpæpəs) / noun plural pappi (ˈpæpaɪ)a ring of fine feathery hairs surrounding the fruit in composite plants, such as the thistle; aids dispersal of the fruits by the wind Derived forms of pappuspappose or pappous, adjectiveWord Origin for pappusC18: via New Latin, from Greek pappos grandfather, old man, old man's beard, hence: pappus, down Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Scientific definitions for pappuspappus [ păp′əs ] Plural pappi (păp′ī)A structure made of scales, bristles, or featherlike hairs that is attached to the seeds (called cypselae) of plants of the composite family and that aids in dispersal by the wind. The downy part of a dandelion or thistle seed is a pappus. The pappus is derived from a modified calyx. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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