used before a singular noun to mean one of a group, when it is not a particular one
From this reading The rocks of the fissure he was following had a temperature of hundreds of degrees.
airlessadjectiveUS /ˈerləs/
lacking fresh air
From this reading Here deep in the cavernous interior of airless Mercury, catastrophe could strike suddenly.
the form of “a” used before a word that begins with a vowel sound
From this reading Doug Norris hesitated for an instant.
used to join words or parts of a sentence that go together
From this reading And he could hear the deep rumble of shifting rock, close by.
one more of the same kind, or a different one
From this reading He knew that another movement might well mean disaster.
showing who or what does the action
From this reading And he could hear the deep rumble of shifting rock, close by.
catastrophenounUS /kəˈtæstrəfi/
an event resulting in great loss and misfortune
From this reading Here deep in the cavernous interior of airless Mercury, catastrophe could strike suddenly.
cavernousadjectiveUS /ˈkævərnəs/
being or suggesting a cavern
From this reading Here deep in the cavernous interior of airless Mercury, catastrophe could strike suddenly.
at or within a short distance in space or time or having elements near each other
From this reading And he could hear the deep rumble of shifting rock, close by.
the past of “can”; used for possibility or polite requests
From this reading Here deep in the cavernous interior of airless Mercury, catastrophe could strike suddenly.
relatively deep or strong; affecting one deeply
From this reading Here deep in the cavernous interior of airless Mercury, catastrophe could strike suddenly.
degreesnounUS /dɪˈɡriːz/
plural of “degree” — a position on a scale of intensity or amount or quality
From this reading The rocks of the fissure he was following had a temperature of hundreds of degrees.
disasternounUS /dɪˈzæstər/
a state of extreme (usually irremediable) ruin and misfortune
From this reading He knew that another movement might well mean disaster.
Doug
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading Doug Norris hesitated for an instant.
fissurenounUS /ˈfɪʃər/
a long narrow depression in a surface
From this reading The rocks of the fissure he was following had a temperature of hundreds of degrees.
about to be mentioned or specified
From this reading The rocks of the fissure he was following had a temperature of hundreds of degrees.
intended to be given to, or used by, somebody
From this reading Doug Norris hesitated for an instant.
hadauxiliary verbUS /hæd/
the past form of “have”, used to form the past perfect
From this reading The rocks of the fissure he was following had a temperature of hundreds of degrees.
a man, boy, or male animal already mentioned, as the subject
From this reading He knew that another movement might well mean disaster.
perceive (sound) via the auditory sense
From this reading And he could hear the deep rumble of shifting rock, close by.
in or at this place; where the speaker or writer is
From this reading Here deep in the cavernous interior of airless Mercury, catastrophe could strike suddenly.
past form of “hesitate” — pause or hold back in uncertainty or unwillingness
From this reading Doug Norris hesitated for an instant.
plural of “hundred” — ten 10s
From this reading The rocks of the fissure he was following had a temperature of hundreds of degrees.
inside something, or within a place, period, or state
From this reading Here deep in the cavernous interior of airless Mercury, catastrophe could strike suddenly.
a very short time (as the time it takes the eye to blink or the heart to beat)
From this reading Doug Norris hesitated for an instant.
interioradjectiveUS /ˌɪnˈtɪriər/
situated within or suitable for inside a building
From this reading Here deep in the cavernous interior of airless Mercury, catastrophe could strike suddenly.
inflected form of “know” — be cognizant or aware of a fact or a specific piece of information; possess knowledge or information about
From this reading He knew that another movement might well mean disaster.
mean or intend to express or convey
From this reading He knew that another movement might well mean disaster.
MercurynounUS /ˈmɜːrkjəri/
a heavy silvery toxic univalent and bivalent metallic element; the only metal that is liquid at ordinary temperatures
From this reading Here deep in the cavernous interior of airless Mercury, catastrophe could strike suddenly.
used to say something is possible but not certain
From this reading He knew that another movement might well mean disaster.
a change of position that does not entail a change of location
From this reading He knew that another movement might well mean disaster.
NorrisnounUS /ˈnɔːrɪs/
United States writer (1870-1902)
From this reading Doug Norris hesitated for an instant.
belonging to, or connected with, somebody or something
From this reading Here deep in the cavernous interior of airless Mercury, catastrophe could strike suddenly.
a lump or mass of hard consolidated mineral matter
From this reading And he could hear the deep rumble of shifting rock, close by.
plural of “rock” — a lump or mass of hard consolidated mineral matter
From this reading The rocks of the fissure he was following had a temperature of hundreds of degrees.
rumbleverbUS /ˈrʌmbəl/
make a low noise
From this reading And he could hear the deep rumble of shifting rock, close by.
shiftingadjectiveUS /ˈʃɪftɪŋ/
continuously varying
From this reading And he could hear the deep rumble of shifting rock, close by.
deliver a sharp blow, as with the hand, fist, or weapon
From this reading Here deep in the cavernous interior of airless Mercury, catastrophe could strike suddenly.
happening unexpectedly
From this reading Here deep in the cavernous interior of airless Mercury, catastrophe could strike suddenly.
temperaturenounUS /ˈtemprətʃər/
the degree of hotness or coldness of a body or environment (corresponding to its molecular activity)
From this reading The rocks of the fissure he was following had a temperature of hundreds of degrees.
used to introduce what somebody said, thought, or felt
From this reading He knew that another movement might well mean disaster.
used before a noun that is already known, already mentioned, or the only one of its kind
From this reading Here deep in the cavernous interior of airless Mercury, catastrophe could strike suddenly.
wasauxiliary verbUS /wɑːz/
the past form of “be” used with I, he, she, it, or a singular noun
From this reading The rocks of the fissure he was following had a temperature of hundreds of degrees.
(often used as a combining form) in a good or proper or satisfactory manner or to a high standard (“good” is a nonstandard dialectal variant for “well”)
From this reading He knew that another movement might well mean disaster.