biphasic

American  

[bahy-fey-zik] / baɪˈfeɪ zɪk /

adjective

1. having two phases.

2. Botany. having a gametophytic and a sporophytic phase.

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biphasic British  

/ baɪˈfeɪzɪk /

adjective

1. having two phases

2. See two-phase

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Etymology

Origin of biphasic

First recorded in 1905–10; bi- ¹ + phase + -ic

Example Sentences

Historical records contain evidence of biphasic sleeping habits in humans dating back hundreds of years.

From National Geographic • Jan. 4, 2024

He pointed out that throughout history, there are numerous accounts of what scholars call "biphasic sleep."

From Salon • Jun. 21, 2023

"It took place over the course of the 19th century, and there were still remote rural areas in the early 20th century in which the inhabitants exhibited biphasic sleep."

From Salon • Feb. 18, 2023

In an influential series of articles and a book At Day’s Close, the historian Roger Ekirch has argued that the basic form of human sleep prior to the mid-19th century was biphasic.

From The Guardian • Mar. 9, 2019

The biphasic solution was transferred to a separatory funnel and diluted further with EtOAc and brine.

From Nature • Mar. 19, 2017