bubble(GROUP)
a group of sea mammals such as whales or dolphins海洋哺乳动物（如鲸鱼、海豚等）
 
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SMART Vocabulary: related words and phrases

Groups of people
affinity group
alliance
an
anti-gang
assemblage
clutch
factionally
family
federation
federative
First Nation
line (someone) up
mob
online community
peer group
phalanx
posse
public
scratch
syndicate

You can also find related words, phrases, and synonyms in the topics:

Medicines & drugs: preventing infection
Animal groupings

podnoun[C] (BROADCAST)

a radio programme that is stored in a digital form that you can download from the internet and play on a computer or mobile phone. Pod is short for podcast:
"Things Fell Apart" is a BBC pod series by Jon Ronson.
Does anyone have a list of the movies that were mentioned on the pod?
"The Football Pod" attracts a large number of listeners.

SMART Vocabulary: related words and phrases

Broadcasting: programmes & other broadcasts
action replay
binge-watch
blooper
breakfast television
breaking news
fly on the wallidiom
game show
God slot
green screen
hate-watch
omnibus
procedural
radio broadcast
reality show
reality TV
rerun
sketch
syndicate
vox pop
webcast
POD
noun[ U ]
 publishing specializeduk /ˌpiː.əʊˈdiː/ us /ˌpiː.oʊˈdiː/
abbreviation for print on demand: a way of producing books or other documents in which copies are printed only after they have been ordered 随需印刷（出版物只有当收到订单之后才印刷，print on demand的缩写）

SMART Vocabulary: related words and phrases

Publishing: printing & word processing
3-D printing
backspace
bed
boldface
boldfaced
bolding
imprint
indent
indentation
inline
intaglio printing
preprint
print on demand
print run
print something out
printed
typographical
typography
unpublished
xerography

pod | American Dictionary

pod
noun[ C ]
us/pɑd/
a long seed container that grows on some plants:
a pea/bean pod

POD | Business English

POD
noun[ U ]
ukus
COMMERCE
written abbreviation for payment on delivery

Examples of pod

pod
The nature of the pod wall and accessibility of stylets to plant sap are probably factors responsible for this preference.
Concurrent with these increases in vegetative growth, the removal treatments delayed fruiting and decreased pod yields, but had no effects on pod size.
In tomato/cowpea intercropping, all cowpea pods were harvested at maturity and dried to a moisture content of 120 g water/kg fresh weight.
For pod yield, plants were harvested from an undisturbed net plot area of 4.8 m2 at maturity.
Younger pods have less thickened cell walls that could be penetrated more easily and are believed to have more accessible sap.
The eclogite sheets and pods are generally sheared and retrogressed to amphibolites at the margins of such bodies.
In the present study, most pods harvested from the treated plants after 15 weeks were without blemishes and of adequate size, therefore marketable.
Some of the conclusions run counter to common plantation practice such as leaving damaged and rotting pods amongst the cocoa trees.
Variation in pod counts within clones ranged up to 500-fold.
There was a two-fold variation between genotypes in the number of pods per plant, with up to 400-fold variation within clones.
Occasionally it contains pods (greater than 1 cm) of black sandstone enriched in carbon and pyrite.
The variation in number of -owers or pods per in-orescence has been investigated by several researchers who obtained inconsistent results.
The total produce of maize cobs and pods of any intercrops from each plot were weighed and subsamples taken to determine oven-dry grain weight.
For shelling percentage, 200 g of groundnut pods, and 10 maize ears, randomly sampled, were shelled per treatment plot.
The last collection took place when the pods were considered completely mature (dark-brown pods).
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.