Joists

A structural, load-carrying building member with an open web system that supports floors and roofs utilizing wood or specific steels and is designed as a simple span member.

joist

Construction; Flooring

a.) A small timber to which the boards of a floor or the laths of a ceiling are nailed. Joists rest on the walls or on girders. b.) One of a series of parallel beams used to ...

lymph hearts

Biology; General

Contractile enlargements of vessels that pump lymph back into the veins; found in fish, amphibians, and reptiles.

lungs

Biology; General

Sac-like structures of varying complexity where blood and air exchange oxygen and carbon dioxide; connected to the outside by a series of tubes and a small opening. In humans, the ...

lymphocytes

Biology; General

White blood cells that arise in the bone marrow and mediate the immune response; include T cells and B cells.

lysosomes

Biology; General

Membrane-enclosed organelles containing digestive enzymes. The lysosomes fuse with food vacuoles and enzymes contained within the lysosome chemically breakdown and/or digest the ...

luteal phase

Biology; General

The second half of the ovarian cycle when the corpus luteum is formed; occurs after ovulation.

labia majora

Biology; General

The outer folds of skin that cover and protect the genital region in women.

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Industry/Domain: Places Category: Antarctic

Frozen waves

Large blue ice structures in the Antarctic that appear like tall waves that have been instantly frozen as they break. These freezing blue waves were ...