line of descent
Kings and emperors can identify their ancestry easier than most people because they usually had scholars recording their reign.
descendents
A person, animal, or plant whose descent can be traced to a particular individual or group.
The Arabs and Jews are both said to be descendents from Abraham in the bible.
dinosaur
Any of various extinct, often gigantic, carnivorous or herbivorous reptiles of the orders Saurischia and Ornithischia that were chiefly terrestrial and existed during the Mesozoic Era. dinosaurs are said to have died due to a great climatic change.
dominate
govern, control
The winner dominated the losers in the game.
elongate
make longer, extend
The man elongated the rope so that his partner could climb it up.
embryo
An organism in its early stages of development
The embryo must be kept safe if the mother is to give birth to it.
emerge
come forth from something that conceals
The resurrected hero emerged from the ashes.
gill
The respiratory organ of most aquatic animals that breathe water to obtain oxygen
The fish has gills to breathe underwater.
hollow
having a space or cavity inside; not solid; empty
The dead tree was hollow inside.
larval
the youngest stage in metamorphosis
The caterpillar is the larval stage of the butterfly.
mammals
Any of various warm-blooded vertebrate animals
Humans are mammals because we create our own heat.
moist
moderately or slightly wet
The towel was moist after putting it in water.
originate
begin, initiate
Some scientists theorize that human beings originated in Africa.
primitive
simple, crude
The stone axe is considered one of the most primitive human weapons.
recede
withdraw, fall away
When the moon isn’t shining above, the water recedes.
reptilian
belonging or pertaining to the Reptilia.
Birds are said to be of reptilian descent.
submerge
sink below the surface
The submarine submerged as it approached the target.
tadpoles
The limbless aquatic larva of a frog or toad tadpoles turn into frogs when they mature.
vanish
fade from sight, disappear
The magician vanished out of thin air as he covered himself with his cape.
wingspan
the distance between the wing tips
The eagle’s wingspan is incredibly long.
고객센터
전화문의 070-4042-1075
