Definition of bract in English:

bract

noun braktbrækt

Botany

A modified leaf or scale, typically small, with a flower or flower cluster in its axil. Bracts are sometimes larger and more brightly coloured than the true flower, as in poinsettia.
〔植〕苞片，苞
Example sentencesExamples
- Even though a continuum was observed between the ‘true’ leaves and bracts, for simplicity all primordia bearing an axillary flower were considered as a bract.
- Grasses and bamboos are known to have large deposits of silica in the tissues of leaf blades and inflorescence bracts.
- What we think are flowers are actually brightly hued leaf bracts.
- Flowers are generally borne solitarily in leaf axils or in inflorescences subtended by bracts, but some taxa are ebractate.
- In addition to a terminal flower there may be several smaller lateral flowers in the axil of cupular bracts, each surrounded by its own small cupule.
Synonyms
frond

Derivatives

bracteal

adjective

Botany

Origin

Late 18th century: from Latin bractea 'thin plate of metal'.

Rhymes

abreact, abstract, act, attract, compact, contract, counteract, diffract, enact, exact, extract, fact, humpbacked, impact, interact, matter-of-fact, pact, protract, redact, refract, retroact, subcontract, subtract, tact, tract, transact, unbacked, underact, untracked

Definition of bract in US English:

bract

nounbraktbrækt

Botany

A modified leaf or scale, typically small, with a flower or flower cluster in its axil. Bracts are sometimes larger and more brightly colored than the true flower, as in poinsettia.
〔植〕苞片，苞
Example sentencesExamples
- Grasses and bamboos are known to have large deposits of silica in the tissues of leaf blades and inflorescence bracts.
- In addition to a terminal flower there may be several smaller lateral flowers in the axil of cupular bracts, each surrounded by its own small cupule.
- What we think are flowers are actually brightly hued leaf bracts.
- Flowers are generally borne solitarily in leaf axils or in inflorescences subtended by bracts, but some taxa are ebractate.
- Even though a continuum was observed between the ‘true’ leaves and bracts, for simplicity all primordia bearing an axillary flower were considered as a bract.
Synonyms
frond

Origin

Late 18th century: from Latin bractea ‘thin plate of metal’.

词汇	bract
释义	Definition of bract in English: bract noun braktbrækt Botany A modified leaf or scale, typically small, with a flower or flower cluster in its axil. Bracts are sometimes larger and more brightly coloured than the true flower, as in poinsettia. 〔植〕苞片，苞 Example sentencesExamples Even though a continuum was observed between the ‘true’ leaves and bracts, for simplicity all primordia bearing an axillary flower were considered as a bract. Grasses and bamboos are known to have large deposits of silica in the tissues of leaf blades and inflorescence bracts. What we think are flowers are actually brightly hued leaf bracts. Flowers are generally borne solitarily in leaf axils or in inflorescences subtended by bracts, but some taxa are ebractate. In addition to a terminal flower there may be several smaller lateral flowers in the axil of cupular bracts, each surrounded by its own small cupule. Synonyms frond Derivatives bracteal adjective Botany Origin Late 18th century: from Latin bractea 'thin plate of metal'. Rhymes abreact, abstract, act, attract, compact, contract, counteract, diffract, enact, exact, extract, fact, humpbacked, impact, interact, matter-of-fact, pact, protract, redact, refract, retroact, subcontract, subtract, tact, tract, transact, unbacked, underact, untracked Definition of bract in US English: bract nounbraktbrækt Botany A modified leaf or scale, typically small, with a flower or flower cluster in its axil. Bracts are sometimes larger and more brightly colored than the true flower, as in poinsettia. 〔植〕苞片，苞 Example sentencesExamples Grasses and bamboos are known to have large deposits of silica in the tissues of leaf blades and inflorescence bracts. In addition to a terminal flower there may be several smaller lateral flowers in the axil of cupular bracts, each surrounded by its own small cupule. What we think are flowers are actually brightly hued leaf bracts. Flowers are generally borne solitarily in leaf axils or in inflorescences subtended by bracts, but some taxa are ebractate. Even though a continuum was observed between the ‘true’ leaves and bracts, for simplicity all primordia bearing an axillary flower were considered as a bract. Synonyms frond Origin Late 18th century: from Latin bractea ‘thin plate of metal’.
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