There are 2 definitions of pappus in English:

pappus1

Syllabification: pap·pus
Pronunciation: /ˈpapəs
 
/

noun (plural pappi /ˈpaˌpī, -ˌpē/)

Botany
The tuft of hairs on each seed of thistles, dandelions, and similar plants that assists dispersal by the wind.
More example sentences
  • The achenes are terete, narrowed at the base, 5 x 0 • 7 mm, ribbed and black, with a basal tuft of hairs and a pappus consisting of five ovate, petal-like scales.
  • The pauciflorous capitulum consists of outer female florets with short ligules, inner hermaphrodite florets without a pappus, and five outer involucral bracts, up to 2 cm long, possessing long-stalked glandular hairs.
  • Coode and Richardson pointed out a relationship between Centranthus and Valeriana because both genera share a plumose pappus.

Origin

early 18th century: via Latin from Greek pappos.

Derivatives

pappose

Pronunciation: /ˈpaˌpōs, ˈpaˌpōz/
adjective
More example sentences
  • Fundamentally, in a calm atmosphere, pappose seeds make vertical descending flights by utilizing the drag force acting on the pappi.
  • The mandibular palp is very large, flattened, and has pappose setae along the rim.

Definition of pappus in:

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Word of the day anomalous
Pronunciation: əˈnɒm(ə)ləs
adjective
deviating from what is standard, normal, or expected

There are 2 definitions of pappus in English:

Pappus2

Syllabification: Pap·pus
Pronunciation: /ˈpapəs
 
/
(Fl. circa ad 300–350), Greek mathematician; known as Pappus of Alexandria. His Collection of six books (another two are missing) is the principal source of knowledge of the mathematics of his predecessors.

Definition of pappus in:

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Word of the day anomalous
Pronunciation: əˈnɒm(ə)ləs
adjective
deviating from what is standard, normal, or expected